MATLAB Function Reference |
Return variable number of arguments
Syntax
Description
function varargout = foo(n)
returns a variable number of arguments from function foo.m
.
function y = bar(varargin)
accepts a variable number of arguments into function bar.m
.
The varargin
and varargout
statements are used only inside a function M-file to contain the optional arguments to the function. Each must be declared as the last argument to a function, collecting all the inputs or outputs from that point onwards. In the declaration, varargin
and varargout
must be lowercase.
Examples
collects all the inputs starting with the second input into the variable varargin
. myplot
uses the comma-separated list syntax varargin{:}
to pass the optional parameters to plot
. The call
results in varargin
being a 1-by-4 cell array containing the values 'color'
, [.5 .7 .3]
, 'linestyle'
, and ':'
.
function [s,varargout] = mysize(x) nout = max(nargout,1)-1; s = size(x); for k=1:nout, varargout(k) = {s(k)}; end
returns the size vector and, optionally, individual sizes. So
returns s = [4 5], rows = 4, cols = 5
.
See Also
nargin
, nargout
, nargchk
, nargoutchk
, inputname
var | vectorize |
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