MATLAB: How to get output in a function to be used in another function

function

From function "A", i've output matrix "Data". Then i want to use "Data" as input for my another function called function "B". what to do?

thanks before 🙂

Best Answer

Function A

function Data = A
 % Your logic

end

Function B

function B(InputData)
 % Your logic
end

Main script or function

% Call function A & collect Data
RecData = A;
% Call function B by passing data as input
B(RecData);

See Scripts and Functions, Calling Functions

Related Solutions

MATLAB: Function

Baba, variables created inside a function are limited to that function's scope. If you want to have DATA available outside the function, you should make that function return the DATA variable:

function DATA = getchan(wd)
% Search for .bin files in the wd directory
files = dir(fullfile(wd,'*.bin'));
DATA=[];
% Loop over every .bin file and build up DATA
for i=1:length(files)
    % Make sure we're reading from the wd directory
    d = readbin (fullfile(wd,files(i).name));
    % Append the first column of what we read to DATA
    DATA=[DATA; d(:,1)];
end
end

Now you can simply call:

MY_DATA = getchan(pwd)

Note above that I've also used "fullfile", passing in "wd" from your function to make your function work specifically on the directory stored in "wd".

MATLAB: Returning output of nested function

You have to assign fval to one of the outputs of the top-level function.

Or add fval as an output of the top-level function -- OptimiseEnergy

For example:

function [x,y,z] = playfunc(a,b)
% a and b are equal size vectors
   x = a+b;
   y = a-b;
   z = conv(x,y);
end

conv.m is called inside playfunc.m and the output of conv is returned from playfunc.m

Best Answer

Related Solutions

MATLAB: Function

MATLAB: Returning output of nested function

Related Question