Execution of script nchoosek as a function is not supported

I am trying to use the nchoosek function and I get this error "Execution of script nchoosek as a function is not supported".

I am entering:

b = nchoosek(5,4)

Thanks for any help!

[John D'Errico]

Please don't use an answer to make a comment and a followup to the answer you got.

Answer 1

[Bruno Luong]

Please do that

which nchoosek

/MATLAB/toolbox/matlab/specfun/nchoosek.m

you must find somewhere similar to the above or this

C:\Program Files\MATLAB\R2022a\toolbox\matlab\specfun\nchoosek.m

You probably shadow the stock function (get different result).

[John D'Errico]

From @David Rann

Thanks for the help Bruno.

When I enter "which nchoosek" I get the current file path.

When I go to this folder:/MATLAB/toolbox/matlab/specfun/nchoosek.m I see the nchoosek function.

What do I need to do to get it to work?

[Bruno Luong]

@David Rann when you edit it

edit('/MATLAB/toolbox/matlab/specfun/nchoosek.m')

can you see the first line with "function c = nchoosek(v,k)"

If not it looks like the original file is corrupted.

[Stephen23]

"When I enter "which nchoosek" I get the current file path."

That does not sound good: do you have a script named NCHOOSEK ? What is the current path?

Please show us what this command prints:

which nchoosek -all