switching output based on input

Hi, is it possible to switch the output of a function based on the input that was given to the function? im talking about switching to diffderent number and types of output?

thank you

Answer 1

[Azzi Abdelmalek]

You can use if else statement

[Dany]

right, but when im defining the function i have to put an output in the definition. how would i change that output during the function runing?

[Azzi Abdelmalek]

This is not clear. Please give an example

[Dany]

lets say i have a function called "grid" that creats a grid from a gived geometry. if the input is a geometry of a square then the output will be [Xgrid, Ygrid], parameters created with the "meshgrid" function. on the other hand if the input is a geometry of a non rectengular shape then the output will be [p, e, t], parameters created by the "initmesh" function (triangular mesh).

i hope that was a batter explenation.

[Azzi Abdelmalek]

Look at

help varargin
help varargout
help nargout

[Dany]

ok, thank you.

[Azzi Abdelmalek]

Example

function varargout=ans_switch(a)
if a==1
  varargout{1}=10
  varargout{2}=20
else
  varargout{1}=100
end

% to call this function

% If a==1
[out1,out2]=ans_switch(1)
% If a~=1
out1=ans_switch(12)