Clear Filters
Clear Filters

Is it possible to use a function with 2 outputs and sometimes with 4 outputs?

2 views (last 30 days)
And how to order the output variables? [x1,x2,x3,x4] = f(); or [x4,x3,x2,x1] = f();
Stephen23 on 26 Jul 2018
"Is it possible to use a function with 2 outputs and sometimes with 4 outputs?"
"And how to order the output variables?"
The order of the output arguments is determined by how they are defined in the function itself. What you call them in the calling workspace is totally irrelevant.

Sign in to comment.

Accepted Answer

OCDER on 26 Jul 2018
See this example function as a starting point for how to make functions with variable input/output, and to do a input/output check, etc.
% >> [x1, x2, x3, x4] = myfun(0)
% or, to prevent habit of dynamically named variable issue x1, x2, ....,
% use a cell output like this:
% >> x = cell(1, 4);
% >> [x{:}] = myfun(0)
% "x1" is accessed via "x{1}"
function varargout = myfun(varargin)
fprintf('There are %d inputs\n', nargin);
fprintf('There are %d outputs\n', nargout);
if nargin < 1
error('%s: Must have at least 1 input.', mfilename);
if ~ismember(nargout, [2, 4])
error('%s: Must have 2 or 4 outputs.', mfilename);
varargout{1} = varargin{1};
varargout{2} = varargin{1} + 1;
varargout{3} = varargin{1} + 2;
varargout{4} = varargin{1} + 3;

More Answers (0)


Find more on Argument Definitions in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!