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comparison scripts/polynomial/polyval.m @ 19791:fe689210525c gui-release

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maint: Periodic merge of stable to gui-release.
author John W. Eaton <jwe@octave.org>
date Tue, 20 Jan 2015 10:05:42 -0500
parents 446c46af4b42
children 4197fc428c7d
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19787:6d75f1683ce8 19791:fe689210525c
19 ## -*- texinfo -*- 19 ## -*- texinfo -*-
20 ## @deftypefn {Function File} {@var{y} =} polyval (@var{p}, @var{x}) 20 ## @deftypefn {Function File} {@var{y} =} polyval (@var{p}, @var{x})
21 ## @deftypefnx {Function File} {@var{y} =} polyval (@var{p}, @var{x}, [], @var{mu}) 21 ## @deftypefnx {Function File} {@var{y} =} polyval (@var{p}, @var{x}, [], @var{mu})
22 ## @deftypefnx {Function File} {[@var{y}, @var{dy}] =} polyval (@var{p}, @var{x}, @var{s}) 22 ## @deftypefnx {Function File} {[@var{y}, @var{dy}] =} polyval (@var{p}, @var{x}, @var{s})
23 ## @deftypefnx {Function File} {[@var{y}, @var{dy}] =} polyval (@var{p}, @var{x}, @var{s}, @var{mu}) 23 ## @deftypefnx {Function File} {[@var{y}, @var{dy}] =} polyval (@var{p}, @var{x}, @var{s}, @var{mu})
24 ## 24 ##
25 ## Evaluate the polynomial @var{p} at the specified values of @var{x}. When 25 ## Evaluate the polynomial @var{p} at the specified values of @var{x}. When
26 ## @var{mu} is present, evaluate the polynomial for 26 ## @var{mu} is present, evaluate the polynomial for
27 ## (@var{x}-@var{mu}(1))/@var{mu}(2). 27 ## (@var{x}-@var{mu}(1))/@var{mu}(2).
28 ## If @var{x} is a vector or matrix, the polynomial is evaluated for each of 28 ## If @var{x} is a vector or matrix, the polynomial is evaluated for each of
29 ## the elements of @var{x}. 29 ## the elements of @var{x}.
30 ## 30 ##
31 ## In addition to evaluating the polynomial, the second output 31 ## In addition to evaluating the polynomial, the second output
32 ## represents the prediction interval, @var{y} +/- @var{dy}, which 32 ## represents the prediction interval, @var{y} +/- @var{dy}, which
33 ## contains at least 50% of the future predictions. To calculate the 33 ## contains at least 50% of the future predictions. To calculate the
34 ## prediction interval, the structured variable @var{s}, originating 34 ## prediction interval, the structured variable @var{s}, originating
35 ## from @code{polyfit}, must be supplied. 35 ## from @code{polyfit}, must be supplied.
36 ## 36 ##
37 ## @seealso{polyvalm, polyaffine, polyfit, roots, poly} 37 ## @seealso{polyvalm, polyaffine, polyfit, roots, poly}
38 ## @end deftypefn 38 ## @end deftypefn
39 39
40 ## Author: Tony Richardson <arichard@stark.cc.oh.us> 40 ## Author: Tony Richardson <arichard@stark.cc.oh.us>
41 ## Created: June 1994 41 ## Created: June 1994