Basically, to reduce the load on the code, I created an .m file with a series of different functions. When I try to execute that .m file within an if statement of another .m file, I get an error.
This is an example of what I have (it worked yesterday, not sure what happened that it doesn't work now):
Note: inside the .m file, a certain equation solves for x.
for y = [n];
run myfile.m
x1 = x
end