How to add vectors to the columns of some array in Julia?

Question

I know that, with package DataFrames, it is possible by doing simply

julia> df = DataFrame();

julia> for i in 1:3
          df[i] = [i, i         


        

Answer 1

Loop over the rows of the matrix:

A = zeros(3,3)
for i = 1:3
  A[i,:] = [i, i+1, 2i]
end