How to use varargin and varargout?
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Roxanne Esguerra
le 7 Juil 2020
Commenté : Roxanne Esguerra
le 12 Juil 2020
Hi, my code is
function [A varargout] = rectangular(L,W,varargin)
A = L*W;
n = nargin;
if n==3
varargout = L*W*varargin;
end
end
When I call the function using 3 variables, I get an error:
>> [a v]=rectangular(2,3,4)
Undefined operator '*' for input arguments of type 'cell'.
Error in rectangular (line 6)
varargout = L*W*varargin;
What should be replaced to make the code work?
Thanks in advance!
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Stephen23
le 7 Juil 2020
Modifié(e) : Stephen23
le 7 Juil 2020
As their documentation explains, both varargin and varargout are cell arrays. So if required (e.g. to perform numeric operations on their contents) you will need to use appropriate indexing to access their contents:
For your example code:
varargout{1} = L*W*varargin{1};
or slightly more robustly:
varargout = {L*W*varargin{1}};
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