To fix error in randcant

 when i run this single line  c = randcantor(0.7,1024,2);in matlab,I get the error "Undefined function 'randcantor' for input arguments of type 'double'." How to fix this error?

[Stephen23]

When I searched just now for "undefined function" on this very forum, I received 3,918 results. Did you view any of these for ideas about what this message means, and how to solve it? (Hint: it is not an inbuilt function)