How can I pass a set of an unknown number of arguments to a function in MATLAB? [duplicate]

Answer 1

To pass in a variable number of inputs to an existing function, use cell arrays with expansion, like this:

x = 1:10;
y = randn(size(x));
plotArguments = {'color' 'red' 'linestyle' '-'};
plot(x, y, plotArguments{:});

or

plotArguments = {1:10 randn(1,10)  'color' 'red' 'linestyle' '-'};
plot(plotArguments{:});

You can use the same trick to receive multiple numbers of outputs. The only hard part is remembering the correct notations.

numArgumentsToAccept = 2;
[results{1:numArgumentsToAccept }] = max(randn(100,1));

Answer 2

a function that returns all arguments as outputs:

function varargout = ndgrid(varargin)    
    varargout = varargin;
return

Answer 3

Using varargin,nargin, varargout and nargout you can easily define variable argument/output functions. See the attached MATLAB documentation link for the varargin page. The others are linked at the bottom:

http://www.mathworks.com/help/matlab/ref/varargin.html

EDIT: BTW, not to toot my own horn, but it seems to be implemented just as I had suggested in the "quick-and-dirty" comment hehehe