Construct this matrix based on two vectors MATLAB

Question

I do have 2 vectors and i want to construct a matrix based onr and c

r =

 1
 2
 4
 6
 8

c =

 2
 4
 6
 8
10
         


        

Answer 1

You could use linear indexing to accomplish this.

First, construct a matrix made out of zeros:

A = zeros(max(r),max(c));

Then set the elements to 1:

A( size(A,1) * (c-1) + r ) = 1;