octave-lyh: scripts/testfun/speed.m annotate

annotate scripts/testfun/speed.m @ 16488:d4ce14c19c2c

Fix print to work with filenames which begin with '~' (bug #38694). * scripts/plot/private/__print_parse_opts__.m: Call tilde_expand() on filename input.

author	Rik <rik@octave.org>
date	Wed, 10 Apr 2013 16:41:06 -0700
parents	5d3a684236b0
children	333243133364

rev	line source
14138 72c96de7a403 maint: update copyright notices for 2012 John W. Eaton <jwe@octave.org> parents: 13283 diff changeset	1 ## Copyright (C) 2000-2012 Paul Kienzle
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 7001 diff changeset	2 ##
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 7001 diff changeset	3 ## This file is part of Octave.
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	4 ##
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 7001 diff changeset	5 ## Octave is free software; you can redistribute it and/or modify it
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 7001 diff changeset	6 ## under the terms of the GNU General Public License as published by
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 7001 diff changeset	7 ## the Free Software Foundation; either version 3 of the License, or (at
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 7001 diff changeset	8 ## your option) any later version.
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	9 ##
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 7001 diff changeset	10 ## Octave is distributed in the hope that it will be useful, but
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 7001 diff changeset	11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 7001 diff changeset	12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 7001 diff changeset	13 ## General Public License for more details.
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	14 ##
f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	15 ## You should have received a copy of the GNU General Public License
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 7001 diff changeset	16 ## along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 7001 diff changeset	17 ## <http://www.gnu.org/licenses/>.
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	18
f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	19 ## -- texinfo --
10793 be55736a0783 Grammarcheck the documentation from m-files. Rik <octave@nomad.inbox5.com> parents: 10791 diff changeset	20 ## @deftypefn {Function File} {} speed (@var{f}, @var{init}, @var{max_n}, @var{f2}, @var{tol})
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	21 ## @deftypefnx {Function File} {[@var{order}, @var{n}, @var{T_f}, @var{T_f2}] =} speed (@dots{})
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	22 ##
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	23 ## Determine the execution time of an expression (@var{f}) for various input
11314 87f258202b0f speed.m: Overhaul documentation string. Rik <octave@nomad.inbox5.com> parents: 10846 diff changeset	24 ## values (@var{n}). The @var{n} are log-spaced from 1 to @var{max_n}. For
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	25 ## each @var{n}, an initialization expression (@var{init}) is computed to
11314 87f258202b0f speed.m: Overhaul documentation string. Rik <octave@nomad.inbox5.com> parents: 10846 diff changeset	26 ## create any data needed for the test. If a second expression (@var{f2}) is
87f258202b0f speed.m: Overhaul documentation string. Rik <octave@nomad.inbox5.com> parents: 10846 diff changeset	27 ## given then the execution times of the two expressions are compared. When
13065 1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	28 ## called without output arguments the results are printed to stdout and
1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	29 ## displayed graphically.
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	30 ##
f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	31 ## @table @code
f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	32 ## @item @var{f}
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	33 ## The code expression to evaluate.
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	34 ##
f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	35 ## @item @var{max_n}
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	36 ## The maximum test length to run. The default value is 100. Alternatively,
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	37 ## use @code{[min_n, max_n]} or specify the @var{n} exactly with
11314 87f258202b0f speed.m: Overhaul documentation string. Rik <octave@nomad.inbox5.com> parents: 10846 diff changeset	38 ## @code{[n1, n2, @dots{}, nk]}.
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	39 ##
f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	40 ## @item @var{init}
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	41 ## Initialization expression for function argument values. Use @var{k}
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	42 ## for the test number and @var{n} for the size of the test. This should
11314 87f258202b0f speed.m: Overhaul documentation string. Rik <octave@nomad.inbox5.com> parents: 10846 diff changeset	43 ## compute values for all variables used by @var{f}. Note that @var{init} will
8507 cadc73247d65 style fixes John W. Eaton <jwe@octave.org> parents: 8506 diff changeset	44 ## be evaluated first for @math{k = 0}, so things which are constant throughout
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	45 ## the test series can be computed once. The default value is
11314 87f258202b0f speed.m: Overhaul documentation string. Rik <octave@nomad.inbox5.com> parents: 10846 diff changeset	46 ## @code{@var{x} = randn (@var{n}, 1)}.
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	47 ##
f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	48 ## @item @var{f2}
11314 87f258202b0f speed.m: Overhaul documentation string. Rik <octave@nomad.inbox5.com> parents: 10846 diff changeset	49 ## An alternative expression to evaluate, so that the speed of two
87f258202b0f speed.m: Overhaul documentation string. Rik <octave@nomad.inbox5.com> parents: 10846 diff changeset	50 ## expressions can be directly compared. The default is @code{[]}.
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	51 ##
f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	52 ## @item @var{tol}
11314 87f258202b0f speed.m: Overhaul documentation string. Rik <octave@nomad.inbox5.com> parents: 10846 diff changeset	53 ## Tolerance used to compare the results of expression @var{f} and expression
87f258202b0f speed.m: Overhaul documentation string. Rik <octave@nomad.inbox5.com> parents: 10846 diff changeset	54 ## @var{f2}. If @var{tol} is positive, the tolerance is an absolute one.
87f258202b0f speed.m: Overhaul documentation string. Rik <octave@nomad.inbox5.com> parents: 10846 diff changeset	55 ## If @var{tol} is negative, the tolerance is a relative one. The default is
87f258202b0f speed.m: Overhaul documentation string. Rik <octave@nomad.inbox5.com> parents: 10846 diff changeset	56 ## @code{eps}. If @var{tol} is @code{Inf}, then no comparison will be made.
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	57 ##
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	58 ## @item @var{order}
11314 87f258202b0f speed.m: Overhaul documentation string. Rik <octave@nomad.inbox5.com> parents: 10846 diff changeset	59 ## The time complexity of the expression @math{O(a*n^p)}. This
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	60 ## is a structure with fields @code{a} and @code{p}.
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	61 ##
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	62 ## @item @var{n}
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	63 ## The values @var{n} for which the expression was calculated @strong{AND}
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	64 ## the execution time was greater than zero.
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	65 ##
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	66 ## @item @var{T_f}
7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	67 ## The nonzero execution times recorded for the expression @var{f} in seconds.
7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	68 ##
7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	69 ## @item @var{T_f2}
7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	70 ## The nonzero execution times recorded for the expression @var{f2} in seconds.
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	71 ## If required, the mean time ratio is simply @code{mean (T_f ./ T_f2)}.
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	72 ##
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	73 ## @end table
f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	74 ##
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	75 ## The slope of the execution time graph shows the approximate
11314 87f258202b0f speed.m: Overhaul documentation string. Rik <octave@nomad.inbox5.com> parents: 10846 diff changeset	76 ## power of the asymptotic running time @math{O(n^p)}. This
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	77 ## power is plotted for the region over which it is approximated
7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	78 ## (the latter half of the graph). The estimated power is not
7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	79 ## very accurate, but should be sufficient to determine the
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	80 ## general order of an algorithm. It should indicate if, for
c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	81 ## example, the implementation is unexpectedly @math{O(n^2)}
c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	82 ## rather than @math{O(n)} because it extends a vector each
11314 87f258202b0f speed.m: Overhaul documentation string. Rik <octave@nomad.inbox5.com> parents: 10846 diff changeset	83 ## time through the loop rather than pre-allocating storage.
87f258202b0f speed.m: Overhaul documentation string. Rik <octave@nomad.inbox5.com> parents: 10846 diff changeset	84 ## In the current version of Octave, the following is not the
87f258202b0f speed.m: Overhaul documentation string. Rik <octave@nomad.inbox5.com> parents: 10846 diff changeset	85 ## expected @math{O(n)}.
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	86 ##
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	87 ## @example
11314 87f258202b0f speed.m: Overhaul documentation string. Rik <octave@nomad.inbox5.com> parents: 10846 diff changeset	88 ## speed ("for i = 1:n, y@{i@} = x(i); endfor", "", [1000, 10000])
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	89 ## @end example
7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	90 ##
10846 a4f482e66b65 Grammarcheck more of the documentation. Rik <octave@nomad.inbox5.com> parents: 10793 diff changeset	91 ## @noindent
11314 87f258202b0f speed.m: Overhaul documentation string. Rik <octave@nomad.inbox5.com> parents: 10846 diff changeset	92 ## But it is if you preallocate the cell array @code{y}:
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	93 ##
f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	94 ## @example
9051 1bf0ce0930be Grammar check TexInfo in all .m files Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	95 ## @group
11314 87f258202b0f speed.m: Overhaul documentation string. Rik <octave@nomad.inbox5.com> parents: 10846 diff changeset	96 ## speed ("for i = 1:n, y@{i@} = x(i); endfor", ...
8507 cadc73247d65 style fixes John W. Eaton <jwe@octave.org> parents: 8506 diff changeset	97 ## "x = rand (n, 1); y = cell (size (x));", [1000, 10000])
9051 1bf0ce0930be Grammar check TexInfo in all .m files Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	98 ## @end group
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	99 ## @end example
7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	100 ##
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	101 ## An attempt is made to approximate the cost of individual
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	102 ## operations, but it is wildly inaccurate. You can improve the
7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	103 ## stability somewhat by doing more work for each @code{n}. For
7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	104 ## example:
7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	105 ##
7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	106 ## @example
8507 cadc73247d65 style fixes John W. Eaton <jwe@octave.org> parents: 8506 diff changeset	107 ## speed ("airy(x)", "x = rand (n, 10)", [10000, 100000])
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	108 ## @end example
f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	109 ##
11314 87f258202b0f speed.m: Overhaul documentation string. Rik <octave@nomad.inbox5.com> parents: 10846 diff changeset	110 ## When comparing two different expressions (@var{f}, @var{f2}), the slope
87f258202b0f speed.m: Overhaul documentation string. Rik <octave@nomad.inbox5.com> parents: 10846 diff changeset	111 ## of the line on the speedup ratio graph should be larger than 1 if the new
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	112 ## expression is faster. Better algorithms have a shallow slope. Generally,
c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	113 ## vectorizing an algorithm will not change the slope of the execution
11314 87f258202b0f speed.m: Overhaul documentation string. Rik <octave@nomad.inbox5.com> parents: 10846 diff changeset	114 ## time graph, but will shift it relative to the original. For
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	115 ## example:
7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	116 ##
7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	117 ## @example
9051 1bf0ce0930be Grammar check TexInfo in all .m files Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	118 ## @group
13065 1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	119 ## speed ("sum (x)", "", [10000, 100000], ...
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	120 ## "v = 0; for i = 1:length (x), v += x(i); endfor")
9051 1bf0ce0930be Grammar check TexInfo in all .m files Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	121 ## @end group
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	122 ## @end example
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	123 ##
11314 87f258202b0f speed.m: Overhaul documentation string. Rik <octave@nomad.inbox5.com> parents: 10846 diff changeset	124 ## The following is a more complex example. If there was an original version
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	125 ## of @code{xcorr} using for loops and a second version using an FFT, then
11314 87f258202b0f speed.m: Overhaul documentation string. Rik <octave@nomad.inbox5.com> parents: 10846 diff changeset	126 ## one could compare the run speed for various lags as follows, or for a fixed
87f258202b0f speed.m: Overhaul documentation string. Rik <octave@nomad.inbox5.com> parents: 10846 diff changeset	127 ## lag with varying vector lengths as follows:
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	128 ##
f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	129 ## @example
9051 1bf0ce0930be Grammar check TexInfo in all .m files Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	130 ## @group
13065 1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	131 ## speed ("xcorr (x, n)", "x = rand (128, 1);", 100,
1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	132 ## "xcorr_orig (x, n)", -100*eps)
1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	133 ## speed ("xcorr (x, 15)", "x = rand (20+n, 1);", 100,
1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	134 ## "xcorr_orig (x, n)", -100*eps)
9051 1bf0ce0930be Grammar check TexInfo in all .m files Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	135 ## @end group
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	136 ## @end example
f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	137 ##
11314 87f258202b0f speed.m: Overhaul documentation string. Rik <octave@nomad.inbox5.com> parents: 10846 diff changeset	138 ## Assuming one of the two versions is in xcorr_orig, this
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	139 ## would compare their speed and their output values. Note that the
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	140 ## FFT version is not exact, so one must specify an acceptable tolerance on
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	141 ## the comparison @code{100*eps}. In this case, the comparison should be
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	142 ## computed relatively, as @code{abs ((@var{x} - @var{y}) ./ @var{y})} rather
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	143 ## than absolutely as @code{abs (@var{x} - @var{y})}.
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	144 ##
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	145 ## Type @kbd{example ("speed")} to see some real examples or
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	146 ## @kbd{demo ("speed")} to run them.
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	147 ## @end deftypefn
f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	148
8202 cf59d542f33e replace all TODOs and XXXs with FIXMEs Jaroslav Hajek <highegg@gmail.com> parents: 7540 diff changeset	149 ## FIXME: consider two dimensional speedup surfaces for functions like kron.
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	150 function [__order, __test_n, __tnew, __torig] = speed (__f1, __init, __max_n = 100, __f2 = "", __tol = eps)
6494 76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	151
76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	152 if (nargin < 1 \|\| nargin > 6)
6046 34f96dd5441b [project @ 2006-10-10 16:10:25 by jwe] jwe parents: 5798 diff changeset	153 print_usage ();
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	154 endif
6494 76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	155
76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	156 if (nargin < 2 \|\| isempty (__init))
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	157 __init = "x = randn (n, 1)";
6494 76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	158 endif
76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	159
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	160 if (isempty (__max_n))
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	161 __max_n = 100;
6494 76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	162 endif
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	163
7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	164 __numtests = 15;
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	165
8506 bc982528de11 comment style fixes John W. Eaton <jwe@octave.org> parents: 8202 diff changeset	166 ## Let user specify range of n.
6494 76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	167 if (isscalar (__max_n))
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	168 __min_n = 1;
6494 76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	169 assert (__max_n > __min_n);
76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	170 __test_n = logspace (0, log10 (__max_n), __numtests);
76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	171 elseif (length (__max_n) == 2)
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	172 [__min_n, __max_n] = deal (__max_n(1), __max_n(2));
6494 76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	173 assert (__min_n >= 1);
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	174 assert (__max_n > __min_n);
6494 76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	175 __test_n = logspace (log10 (__min_n), log10 (__max_n), __numtests);
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	176 else
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	177 assert (all (__max_n > 0));
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	178 __test_n = __max_n;
7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	179 endif
8506 bc982528de11 comment style fixes John W. Eaton <jwe@octave.org> parents: 8202 diff changeset	180 ## Force n to be an integer.
bc982528de11 comment style fixes John W. Eaton <jwe@octave.org> parents: 8202 diff changeset	181 __test_n = unique (round (__test_n));
6494 76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	182 assert (__test_n >= 1);
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	183
6494 76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	184 __torig = __tnew = zeros (size (__test_n));
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	185
13065 1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	186 ## Print and plot the data if no output is requested.
1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	187 do_display = (nargout == 0);
1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	188
1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	189 if (do_display)
1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	190 disp (cstrcat ("testing ", __f1, "\ninit: ", __init));
1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	191 endif
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	192
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	193 ## Add semicolon closure to all code fragments in case user has not done so.
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	194 __init = cstrcat (__init, ";");
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	195 __f1 = cstrcat (__f1, ";");
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	196 if (! isempty (__f2))
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	197 __f2 = cstrcat (__f2, ";");
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	198 endif
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	199
8506 bc982528de11 comment style fixes John W. Eaton <jwe@octave.org> parents: 8202 diff changeset	200 ## Make sure the functions are freshly loaded by evaluating them at
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	201 ## test_n(1); first have to initialize the args though.
6494 76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	202 n = 1;
76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	203 k = 0;
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	204 eval (__init);
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	205 eval (__f1);
6494 76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	206 if (! isempty (__f2))
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	207 eval (__f2);
6494 76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	208 endif
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	209
8506 bc982528de11 comment style fixes John W. Eaton <jwe@octave.org> parents: 8202 diff changeset	210 ## Run the tests.
6494 76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	211 for k = 1:length (__test_n)
76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	212 n = __test_n(k);
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	213 eval (__init);
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	214
13065 1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	215 if (do_display)
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	216 printf ("n%i = %i ", k, n);
13065 1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	217 fflush (stdout);
1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	218 endif
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	219
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	220 eval (cstrcat ("__t = time();", __f1, "__v1=ans; __t = time()-__t;"));
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	221 if (__t < 0.25)
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	222 eval (cstrcat ("__t2 = time();", __f1, "__t2 = time()-__t2;"));
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	223 eval (cstrcat ("__t3 = time();", __f1, "__t3 = time()-__t3;"));
6494 76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	224 __t = min ([__t, __t2, __t3]);
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	225 endif
f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	226 __tnew(k) = __t;
f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	227
6494 76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	228 if (! isempty (__f2))
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	229 eval (cstrcat ("__t = time();", __f2, "__v2=ans; __t = time()-__t;"));
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	230 if (__t < 0.25)
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	231 eval (cstrcat ("__t2 = time();", __f2, "__t2 = time()-__t2;"));
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	232 eval (cstrcat ("__t3 = time();", __f2, "__t3 = time()-__t3;"));
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	233 __t = min ([__t, __t2, __t3]);
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	234 endif
f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	235 __torig(k) = __t;
6494 76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	236 if (! isinf(__tol))
10549 95c3e38098bf Untabify .m scripts Rik <code@nomad.inbox5.com> parents: 9051 diff changeset	237 assert (__v1, __v2, __tol);
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	238 endif
f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	239 endif
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	240
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	241 endfor
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	242
8506 bc982528de11 comment style fixes John W. Eaton <jwe@octave.org> parents: 8202 diff changeset	243 ## Drop times of zero.
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	244 if (isempty (__f2))
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	245 zidx = (__tnew < 100*eps);
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	246 __test_n(zidx) = [];
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	247 __tnew(zidx) = [];
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	248 else
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	249 zidx = (__tnew < 100eps \| __torig < 100eps);
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	250 __test_n(zidx) = [];
7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	251 __tnew(zidx) = [];
7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	252 __torig(zidx) = [];
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	253 endif
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	254
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	255 if (isempty (__test_n))
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	256 error (["speed: All running times were zero.\n",
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	257 "error: speed: Choose larger MAX_N or do more work per function evaluation"]);
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	258 endif
6494 76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	259
8506 bc982528de11 comment style fixes John W. Eaton <jwe@octave.org> parents: 8202 diff changeset	260 ## Approximate time complexity and return it if requested.
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	261 tailidx = ceil (length (__test_n)/2):length (__test_n);
6494 76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	262 p = polyfit (log (__test_n(tailidx)), log (__tnew(tailidx)), 1);
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	263 if (nargout > 0)
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	264 __order.p = p(1);
6494 76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	265 __order.a = exp (p(2));
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	266 endif
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	267
13065 1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	268 if (do_display)
6430 215b141470b4 [project @ 2007-03-21 20:58:08 by dbateman] dbateman parents: 6429 diff changeset	269 figure;
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	270 ## Strip semicolon added to code fragments before displaying
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	271 __init(end) = "";
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	272 __f1(end) = "";
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	273 if (! isempty (__f2))
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	274 __f2(end) = "";
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	275 endif
6430 215b141470b4 [project @ 2007-03-21 20:58:08 by dbateman] dbateman parents: 6429 diff changeset	276 endif
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	277
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	278 if (do_display && isempty (__f2))
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	279
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	280 loglog (__test_n, __tnew1000, "-g;execution time;");
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	281 xlabel ("test length");
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	282 ylabel ("best execution time (ms)");
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	283 title ({__f1, cstrcat("init: ", __init)});
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	284
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	285 elseif (do_display)
13065 1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	286
6494 76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	287 subplot (1, 2, 1);
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	288 semilogx (__test_n, __torig./__tnew,
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	289 cstrcat ("-*r;", strrep (__f1, ";", "."), " / ",
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	290 strrep (__f2, ";", "."), ";"),
10549 95c3e38098bf Untabify .m scripts Rik <code@nomad.inbox5.com> parents: 9051 diff changeset	291 __test_n, __tnew./__torig,
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	292 cstrcat ("-*g;", strrep (__f2, ";", "."), " / ",
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	293 strrep (__f1, ";", "."), ";"));
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	294 title ("Speedup Ratio");
6494 76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	295 xlabel ("test length");
76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	296 ylabel ("speedup ratio");
76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	297
76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	298 subplot (1, 2, 2);
76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	299 loglog (__test_n, __tnew*1000,
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	300 cstrcat ("*-g;", strrep (__f1, ";", "."), ";"),
10549 95c3e38098bf Untabify .m scripts Rik <code@nomad.inbox5.com> parents: 9051 diff changeset	301 __test_n, __torig*1000,
95c3e38098bf Untabify .m scripts Rik <code@nomad.inbox5.com> parents: 9051 diff changeset	302 cstrcat ("*-r;", strrep (__f2,";","."), ";"));
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	303 title ({"Execution Times", cstrcat("init: ", __init)});
6494 76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	304 xlabel ("test length");
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	305 ylabel ("best execution time (ms)");
6494 76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	306
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	307 ratio = mean (__torig ./ __tnew);
6494 76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	308 printf ("\n\nMean runtime ratio = %.3g for '%s' vs '%s'\n",
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	309 ratio, __f2, __f1);
7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	310
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	311 endif
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	312
13065 1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	313 if (do_display)
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	314
7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	315 ## Plot time complexity approximation (using milliseconds).
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	316 figure; # Open second plot window
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	317
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	318 order = round (10*p(1))/10;
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	319 if (order >= 0.1)
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	320 order = sprintf ("O(n^%g)", order);
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	321 else
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	322 order = "O(1)";
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	323 endif
6494 76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	324 v = polyval (p, log (__test_n(tailidx)));
76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	325
14868 5d3a684236b0 maint: Use Octave coding conventions for cuddling parentheses in scripts directory Rik <octave@nomad.inbox5.com> parents: 14363 diff changeset	326 loglog (__test_n(tailidx), exp (v) * 1000, sprintf ("b;%s;", order));
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	327 title ({"Time Complexity", __f1});
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	328 xlabel ("test length");
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	329
8506 bc982528de11 comment style fixes John W. Eaton <jwe@octave.org> parents: 8202 diff changeset	330 ## Get base time to 1 digit of accuracy.
6494 76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	331 dt = exp (p(2));
14868 5d3a684236b0 maint: Use Octave coding conventions for cuddling parentheses in scripts directory Rik <octave@nomad.inbox5.com> parents: 14363 diff changeset	332 dt = floor (dt/10^floor (log10 (dt)))*10^floor (log10 (dt));
6494 76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	333 if (log10 (dt) >= -0.5)
76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	334 time = sprintf ("%g s", dt);
76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	335 elseif (log10 (dt) >= -3.5)
76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	336 time = sprintf ("%g ms", dt*1e3);
76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	337 elseif (log10 (dt) >= -6.5)
76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	338 time = sprintf ("%g us", dt*1e6);
76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	339 else
76a1a953533d [project @ 2007-04-05 16:09:03 by jwe] jwe parents: 6430 diff changeset	340 time = sprintf ("%g ns", dt*1e9);
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	341 endif
7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	342
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	343 ## Display nicely formatted complexity.
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	344 printf ("\nFor %s:\n", __f1);
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	345 printf (" asymptotic power: %s\n", order);
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	346 printf (" approximate time per operation: %s\n", time);
5798 7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	347
7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	348 endif
7e7ed81f5566 [project @ 2006-05-09 17:24:33 by jwe] jwe parents: 5589 diff changeset	349
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	350 endfunction
f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	351
13274 b48e11427ac0 speed.m: Fix 2 intermittently failing tests (Bug #34234) Rik <octave@nomad.inbox5.com> parents: 13065 diff changeset	352
b48e11427ac0 speed.m: Fix 2 intermittently failing tests (Bug #34234) Rik <octave@nomad.inbox5.com> parents: 13065 diff changeset	353 %% FIXME: Demos with declared functions do not work. See bug #31815.
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	354 %% A workaround has been hacked by not declaring the functions
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	355 %% but using eval to create them in the proper context.
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	356 %% Unfortunately, we can't remove them from the user's workspace
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	357 %% because of another bug (#34497).
5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	358 %!demo
14363 f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	359 %! fstr_build_orig = cstrcat (
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	360 %! "function x = build_orig (n)\n",
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	361 %! " ## extend the target vector on the fly\n",
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	362 %! " for i=0:n-1, x([1:100]+i*100) = 1:100; endfor\n",
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	363 %! "endfunction");
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	364 %! fstr_build = cstrcat (
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	365 %! "function x = build (n)\n",
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	366 %! " ## preallocate the target vector\n",
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	367 %! " x = zeros (1, n*100);\n",
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	368 %! " for i=0:n-1, x([1:100]+i*100) = 1:100; endfor\n",
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	369 %! "endfunction");
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	370 %!
14363 f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	371 %! disp ("-----------------------");
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	372 %! disp (fstr_build_orig);
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	373 %! disp ("-----------------------");
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	374 %! disp (fstr_build);
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	375 %! disp ("-----------------------");
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	376 %!
14363 f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	377 %! ## Eval functions strings to create them in the current context
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	378 %! eval (fstr_build_orig);
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	379 %! eval (fstr_build);
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	380 %!
14363 f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	381 %! disp ("Preallocated vector test.\nThis takes a little while...");
14868 5d3a684236b0 maint: Use Octave coding conventions for cuddling parentheses in scripts directory Rik <octave@nomad.inbox5.com> parents: 14363 diff changeset	382 %! speed ("build (n)", "", 1000, "build_orig (n)");
14363 f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	383 %! clear -f build build_orig
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	384 %! disp ("-----------------------");
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	385 %! disp ("Note how much faster it is to pre-allocate a vector.");
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	386 %! disp ("Notice the peak speedup ratio.");
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	387
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	388 %!demo
14363 f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	389 %! fstr_build_orig = cstrcat (
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	390 %! "function x = build_orig (n)\n",
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	391 %! " for i=0:n-1, x([1:100]+i*100) = 1:100; endfor\n",
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	392 %! "endfunction");
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	393 %! fstr_build = cstrcat (
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	394 %! "function x = build (n)\n",
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	395 %! " idx = [1:100]';\n",
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	396 %! " x = idx(:,ones(1,n));\n",
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	397 %! " x = reshape (x, 1, n*100);\n",
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	398 %! "endfunction");
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	399 %!
14363 f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	400 %! disp ("-----------------------");
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	401 %! disp (fstr_build_orig);
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	402 %! disp ("-----------------------");
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	403 %! disp (fstr_build);
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	404 %! disp ("-----------------------");
5589 f812a0680d05 [project @ 2006-01-06 00:14:42 by jwe] jwe parents: diff changeset	405 %!
14363 f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	406 %! ## Eval functions strings to create them in the current context
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	407 %! eval (fstr_build_orig);
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	408 %! eval (fstr_build);
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	409 %!
14363 f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	410 %! disp ("Vectorized test.\nThis takes a little while...");
14868 5d3a684236b0 maint: Use Octave coding conventions for cuddling parentheses in scripts directory Rik <octave@nomad.inbox5.com> parents: 14363 diff changeset	411 %! speed ("build (n)", "", 1000, "build_orig (n)");
14363 f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	412 %! clear -f build build_orig
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	413 %! disp ("-----------------------");
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	414 %! disp ("This time, the for loop is done away with entirely.");
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	415 %! disp ("Notice how much bigger the speedup is than in example 1.");
13065 1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	416
1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	417 %!test
1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	418 %! [order, n, T_f1, T_f2] = speed ("airy (x)", "x = rand (n, 10)", [100, 1000]);
1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	419 %! assert (isstruct (order));
1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	420 %! assert (size (order), [1, 1]);
1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	421 %! assert (fieldnames (order), {"p"; "a"});
1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	422 %! assert (isnumeric (n));
13274 b48e11427ac0 speed.m: Fix 2 intermittently failing tests (Bug #34234) Rik <octave@nomad.inbox5.com> parents: 13065 diff changeset	423 %! assert (length (n) > 10);
13065 1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	424 %! assert (isnumeric (T_f1));
13276 d5c8c2fe2eed speed.m: Further fixes for 2 speed tests (Bug #34234) Rik <octave@nomad.inbox5.com> parents: 13274 diff changeset	425 %! assert (size (T_f1), size (n));
13274 b48e11427ac0 speed.m: Fix 2 intermittently failing tests (Bug #34234) Rik <octave@nomad.inbox5.com> parents: 13065 diff changeset	426 %! assert (isnumeric (T_f2));
13276 d5c8c2fe2eed speed.m: Further fixes for 2 speed tests (Bug #34234) Rik <octave@nomad.inbox5.com> parents: 13274 diff changeset	427 %! assert (length (T_f2) > 10);
13065 1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	428
14237 11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	429 %% This test is known to fail on operating systems with low resolution timers
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	430 %% such as MinGW
13283 5d3d802c772e speed.m: Overhaul code to fix broken demos and tests (Bug #34234, Bug #31815) Rik <octave@nomad.inbox5.com> parents: 13276 diff changeset	431 %!xtest
13276 d5c8c2fe2eed speed.m: Further fixes for 2 speed tests (Bug #34234) Rik <octave@nomad.inbox5.com> parents: 13274 diff changeset	432 %! [order, n, T_f1, T_f2] = speed ("sum (x)", "", [100, 1000], "v = 0; for i = 1:length (x), v += x(i); endfor");
13065 1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	433 %! assert (isstruct (order));
1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	434 %! assert (size (order), [1, 1]);
1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	435 %! assert (fieldnames (order), {"p"; "a"});
1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	436 %! assert (isnumeric (n));
13274 b48e11427ac0 speed.m: Fix 2 intermittently failing tests (Bug #34234) Rik <octave@nomad.inbox5.com> parents: 13065 diff changeset	437 %! assert (length (n) > 10);
13065 1ca3cde15b18 codepsprint: tests for testfun functions John W. Eaton <jwe@octave.org> parents: 11587 diff changeset	438 %! assert (isnumeric (T_f1));
13276 d5c8c2fe2eed speed.m: Further fixes for 2 speed tests (Bug #34234) Rik <octave@nomad.inbox5.com> parents: 13274 diff changeset	439 %! assert (size (T_f1), size (n));
13274 b48e11427ac0 speed.m: Fix 2 intermittently failing tests (Bug #34234) Rik <octave@nomad.inbox5.com> parents: 13065 diff changeset	440 %! assert (isnumeric (T_f2));
13276 d5c8c2fe2eed speed.m: Further fixes for 2 speed tests (Bug #34234) Rik <octave@nomad.inbox5.com> parents: 13274 diff changeset	441 %! assert (length (T_f2) > 10);
13274 b48e11427ac0 speed.m: Fix 2 intermittently failing tests (Bug #34234) Rik <octave@nomad.inbox5.com> parents: 13065 diff changeset	442
b48e11427ac0 speed.m: Fix 2 intermittently failing tests (Bug #34234) Rik <octave@nomad.inbox5.com> parents: 13065 diff changeset	443 %% Test input validation
14363 f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	444 %!error speed ()
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	445 %!error speed (1, 2, 3, 4, 5, 6, 7)
13274 b48e11427ac0 speed.m: Fix 2 intermittently failing tests (Bug #34234) Rik <octave@nomad.inbox5.com> parents: 13065 diff changeset	446

Mercurial > hg > octave-lyh

annotate scripts/testfun/speed.m @ 16488:d4ce14c19c2c