MATLAB: How to put a .mat file into a function

Question

I have the following code:

userInput=input("Please choose between the following numbers: 1,2 or 3.");
function Tester(bridges.mat,userInput)
end

I tried having doing the following:

userInput=input("Please choose between the following numbers: 1,2 or 3.");
function Tester(bridges,userInput)
bridges=load(bridges.mat);
end

but it still did not load the data. What am i doing wrong?

Answer 1

If you know the name of the mat file, you don't have to pass it in. As long as it is accessible (in the current folder, or in a folder that has been added to the MATLAB path), it can load it.

userInput=input("Please choose between the following numbers: 1,2 or 3.");
function Tester(userInput)
bridges=load(bridges.mat);
end

Otherwise, you can look into how to pass inputs to a function. You declare the inputs using varibles, then call the function with the actual values. For example

userInput=input("Please choose between the following numbers: 1,2 or 3.");
% call function and pass in fileName as character array
Tester('bridges.mat')
% function declaration containg variable names
function Tester(fileName,userInput)
% Inside a function, you use the variable names used in the declaration
bridges=load(fileName);
end