[Gretl-users] Re: Elements Multiplication
On Sun, Mar 19, 2023 at 11:17 AM Dhanasekaran Kuppusamy
<drgkdphd(a)gmail.com> wrote:
Dear gretl experts ,
I would like to know how to multiply the corresponding
elements of two matrices of A and B to generate matrix C as shown below and the
square values of the elements in matrix C using gretl. For example,
1)
matrix A (3x3): matrix B (3x3):
matrix C (3x3):
4 2 3 1 1 2
4 2 6
2 -3 2 1 0 1
2 0 2
- 3 1 2 1 2 2
- 3 2 4
C = A .* B
"dot-multiply" works element by element (Hadamard multiplication).
2) How to generate square values of the elements in matrix C to
get matrix D :
For example, matrix C (3x3): matrix D (3x3):
4 2 6
16 4 36
2 0 2
4 0 4
-3 2 4
9 4 16
D = C .^ 2
"dot-raise to power" also works element-wise.
Allin Cottrell