How to avoid writing varying number of loops?

I want to evaluate a function of K variables each of them varying between 1:N. One way to do this is writing K loops and varying variables accordingly. I want to know is there any other way to do this without K loops?

Since I want to write a MATLAB function doing these evaluations for all possible K's, it isn't possible to write varying number of loops in one function so what should I do? Thanks

[dpb]

doc ndgrid