Different value putting on different columns in matrix

Hello,

I am writting a matrix

p=zeros(4,5) -----> all column values are zero

but I want different values of different column like, 1st column's every value will be 2, 2nd column's every value wil be 0.25. similarly rest columns will be assigned by other values . How I can write this code.

Thanks in advance.

Answer 1

[Ameer Hamza]

You can use repmat()

x = [2 0.25 3 1 7];
n_rows = 4;

M = repmat(x, n_rows, 1)

Result

>> M
M =
    2.0000    0.2500    3.0000    1.0000    7.0000
    2.0000    0.2500    3.0000    1.0000    7.0000
    2.0000    0.2500    3.0000    1.0000    7.0000
    2.0000    0.2500    3.0000    1.0000    7.0000

Or automatic array expansion

x = [2 0.25 3 1 7];
n_rows = 4;
M = x.*ones(n_rows,1);

Both are equivalent.

[Soumili Sen]

wow,it's awesome. Thanks a lot.