ndims
ndims(X) returns the number of dimensions in X.
Examples
> ndims(1) [ans:2]
> ndims(rand(2,3)) [ans:2]
> ndims(rand(2,3,4)) [ans:3]
> ndims(rand(2,3,4,2)) [ans:4]
> ndims(1) [ans:2]
> ndims(rand(2,3)) [ans:2]
> ndims(rand(2,3,4)) [ans:3]
> ndims(rand(2,3,4,2)) [ans:4]