Mercurial > hg > octave-nkf
annotate scripts/general/isvector.m @ 13146:1ce5cd703af0
Fix bug for complex input for gradient (#34292)
general/gradient.m: Replace conjugate with transpose operator. Tests added.
| author | Kai Habel <kai.habel@gmx.de> |
|---|---|
| date | Fri, 16 Sep 2011 21:04:30 +0200 |
| parents | 132c89bb44e3 |
| children | e98140f84ae0 |
| rev | line source |
|---|---|
| 11523 | 1 ## Copyright (C) 1996-2011 John W. Eaton |
| 4026 | 2 ## |
| 3 ## This file is part of Octave. | |
| 4 ## | |
| 5 ## Octave is free software; you can redistribute it and/or modify it | |
| 6 ## under the terms of the GNU General Public License as published by | |
| 7016 | 7 ## the Free Software Foundation; either version 3 of the License, or (at |
| 8 ## your option) any later version. | |
| 4026 | 9 ## |
| 10 ## Octave is distributed in the hope that it will be useful, but | |
| 11 ## WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 ## General Public License for more details. | |
| 14 ## | |
| 15 ## You should have received a copy of the GNU General Public License | |
| 7016 | 16 ## along with Octave; see the file COPYING. If not, see |
| 17 ## <http://www.gnu.org/licenses/>. | |
| 4026 | 18 |
| 19 ## -*- texinfo -*- | |
|
11431
0d9640d755b1
Improve docstrings for all isXXX functions.
Rik <octave@nomad.inbox5.com>
parents:
8920
diff
changeset
|
20 ## @deftypefn {Function File} {} isvector (@var{x}) |
|
0d9640d755b1
Improve docstrings for all isXXX functions.
Rik <octave@nomad.inbox5.com>
parents:
8920
diff
changeset
|
21 ## Return true if @var{x} is a vector. A vector is a 2-D array |
|
0d9640d755b1
Improve docstrings for all isXXX functions.
Rik <octave@nomad.inbox5.com>
parents:
8920
diff
changeset
|
22 ## where one of the dimensions is equal to 1. As a consequence a |
|
0d9640d755b1
Improve docstrings for all isXXX functions.
Rik <octave@nomad.inbox5.com>
parents:
8920
diff
changeset
|
23 ## 1x1 array, or scalar, is also a vector. |
|
0d9640d755b1
Improve docstrings for all isXXX functions.
Rik <octave@nomad.inbox5.com>
parents:
8920
diff
changeset
|
24 ## @seealso{isscalar, ismatrix, size, rows, columns, length} |
| 4026 | 25 ## @end deftypefn |
| 26 | |
| 27 ## Author: jwe | |
| 28 | |
| 29 function retval = isvector (x) | |
| 30 | |
|
12604
132c89bb44e3
maint: Refactor general/isXXX.m scripts to put input validation first.
Rik <octave@nomad.inbox5.com>
parents:
12491
diff
changeset
|
31 if (nargin != 1) |
| 6046 | 32 print_usage (); |
| 4026 | 33 endif |
| 34 | |
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12604
132c89bb44e3
maint: Refactor general/isXXX.m scripts to put input validation first.
Rik <octave@nomad.inbox5.com>
parents:
12491
diff
changeset
|
35 sz = size (x); |
|
132c89bb44e3
maint: Refactor general/isXXX.m scripts to put input validation first.
Rik <octave@nomad.inbox5.com>
parents:
12491
diff
changeset
|
36 retval = (ndims (x) == 2 && (sz(1) == 1 || sz(2) == 1)); |
|
132c89bb44e3
maint: Refactor general/isXXX.m scripts to put input validation first.
Rik <octave@nomad.inbox5.com>
parents:
12491
diff
changeset
|
37 |
| 4026 | 38 endfunction |
| 7411 | 39 |
| 40 %!assert(isvector (1)); | |
| 41 %!assert(isvector ([1; 2; 3])); | |
| 42 %!assert(!(isvector ([]))); | |
| 43 %!assert(!(isvector ([1, 2; 3, 4]))); | |
| 44 | |
| 45 %!test | |
|
12491
981cd6796065
Use modern warning function rather than deprecated built-in variable to set warning state.
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
46 %! warning ("off", "Octave:str-to-num"); |
| 7411 | 47 %! assert((isvector ("t"))); |
| 48 | |
| 49 %!test | |
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12491
981cd6796065
Use modern warning function rather than deprecated built-in variable to set warning state.
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
50 %! warning ("off", "Octave:str-to-num"); |
| 7411 | 51 %! assert((isvector ("test"))); |
| 52 | |
| 53 %!assert(!(isvector (["test"; "ing"]))); | |
| 54 | |
| 55 %!test | |
| 56 %! s.a = 1; | |
| 57 %! assert((isvector (s))); | |
| 58 | |
|
12491
981cd6796065
Use modern warning function rather than deprecated built-in variable to set warning state.
Rik <octave@nomad.inbox5.com>
parents:
11523
diff
changeset
|
59 %% Test input validation |
| 7411 | 60 %!error isvector (); |
| 61 %!error isvector ([1, 2], 2); | |
| 62 |