Matlab: how to show user possible function inputs like Matlab does using help dropdown

Question

So in Matlab, if you start to type in a function like find( and then wait after the open parentheses, a small yellow popup will appear showing potential input options, like:

find(X)
find(X,K)
find(X,n,direction)
find(__)

So I'm wondering, is it possible to set up my own function so the same happens? I tried copying the find file in the format, so mine looks like this:

%MY_FUNCTION   Description of function
%   O = MY_FUNCTION(X) returns the output based on the input X.
%
%   O = MY_FUNCTION(X,Y) returns the output based on the input Y.

But after saving it, when I type my_function(, all it shows is my_function(...). Is it just not possible for user functions? Thanks for any input!

Answer 1

It is possible to set up these hints for custom functions, but you can't do it in the function .m file. Instead, you need to put the information in a separate functionSignatures.json file in the same directory as the custom function. You can find the official documentation and file specification here.