Could anyone help me how to change the values of the matrix to a desired range.

N = 10

X = zeros(N)

X(1:2,:) = 1

If i run the code i am getting the result as

1 1 1 1 1 1 1 1 1 1

1 1 1 1 1 1 1 1 1 1

0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0

but I want to have the result as

1 1 1 1 1 1 1 1 1 1

1 1 1 1 1 1 1 1 1 1

0 0 2 2 2 2 2 2 2 2

0 0 2 2 2 2 2 2 2 2

0 0 0 0 3 3 3 3 3 3

0 0 0 0 3 3 3 3 3 3

0 0 0 0 0 0 5 5 5 5

0 0 0 0 0 0 0 0 6 6

0 0 0 0 0 0 0 0 0 7

0 0 0 0 0 0 0 0 0 9

Could anyone please help me on this

Answer 1

[Chunru]

Something like this:

N = 10

N = 10

X = zeros(N);
X(1:2,:) = 1;
X(3:4, 3:end)=2;
X(5:6, 5:end)=3;
X(7, 7:end)=5;
X(8, 9:end)=6;
X(9, 10)=7;
X(10,10)=9;
X

X = 10×10

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 2 2 2 2 2 2 2 2 0 0 2 2 2 2 2 2 2 2 0 0 0 0 3 3 3 3 3 3 0 0 0 0 3 3 3 3 3 3 0 0 0 0 0 0 5 5 5 5 0 0 0 0 0 0 0 0 6 6 0 0 0 0 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0 9