How do I do this? Pass a filename to a function?

I have created a function to browse a file in a gui. Now I have another function which does some calculations with the variables in the browsed file. So how do I load that file's contents in the new function?

Answer 1

[Image Analyst]

In your first function you pass the filename to the new function:

results = new_function(filename);

Then in new_function you read in the data and do something with it.

function results = new_function(filename)
data = importdata(filename); % of xlsread() or csvread() or readtable() or whatever...
% Now do something with data....

[new user 00]

what is "results"?

[Image Analyst]

It's whatever variables you want to pass back to the calling routine. You don't have to use it. You can call it whatever you want or even use multiple ones, like

function [result1, result2] = new_function(input1, input2, input3)

Sounds like you need to read the Getting Started stuff about how to write a program and call functions.

[Stephen23]

https://www.mathworks.com/help/matlab/getting-started-with-matlab.html

https://www.mathworks.com/videos/getting-started-with-matlab-68985.html

https://www.mathworks.com/help/matlab/matlab_prog/create-functions-in-files.html

https://blogs.mathworks.com/videos/2011/06/20/managing-code-in-matlab-functions/

[new user 00]

don't mistake me. But even now I'm not so clear with what to do. Is there any videos related to this?

[Image Analyst]

Stuart has an excellent collection of them here:

https://blogs.mathworks.com/videos/

two of which are the second and fourth links on Stephen's list.