Inserting variable number of zeros between non-zero elements in a vector in MATLAB

Question

I have a vector like:

a = [1,2,3,4,5,6...,n]

and I would like to obtain a new vector like this:

a_new = [1,0,0,2,0,0,3,0,0         


        

Answer 1

x = [1 2 3 4 5]; upsample(x,3)

o/p: 1 0 0 2 0 0 3 0 0 4 0 0 5 0 0

Cheers!!