ones

Purpose

Create vector or matrix of all ones.

Y = ones(n)
Y = ones(m,n)
Y = ones(size(A))

Y = ones(n) is an n-by-n matrix of 1s.

Y = ones(m,n) is an m-by-n matrix of 1s.

Y = ones(size(A)) is the same size as A and consists of all 1s.