How to call a user-defined function

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Jisu Shin
Jisu Shin 2018-6-25
评论： Jisu Shin 2018-6-25
I have a function, CAT(a,b,c) for example saved as CAT.m in a separate file. How can I call this user-defined function from the command window? When I use the function, it makes an error with the message, "Undefined variable or function". I checked for typos. Or rather, how would I put this file on the correct Matlab path? Thanks in advance.

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dpb
dpb 2018-6-25
Store it in the working directory or in a directory on MATLABPATH. Depending on what the function purpose is, specialized or more general, having a general directory for such functions that one keeps on the permanent path is a good technique. Besides CWD, I have a UTILITIES directory for precisely that purpose in the search path where that sort of thing goes.
I'd recommend to name your file something other than CAT(); even though Matlab is case-sensitive, the name being the same except for that to the builtin cat() function is bound to cause comprehension confusion later on, in nothing else.

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