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Posted: **Wed Oct 29, 2008 2:25 pm**

I have a matrix A , what i want to do is if each factor is greater than 65, then matrix B= (factor-65), else factor returns 0.

I tried to create a new matrix S full of 65(same dimension as matrix A) and using code
matrix new_A = (A>65)*(A-65)+(A<=65)*0
However, it returns a matrix full of 0(@recode can't be used in matrix calculations).
Thank you!!!

Posted: **Wed Oct 29, 2008 2:51 pm**

When you say "factor" do you mean element?

If so, you can use a couple of for loops to loop through the matrix element by element:

Code: Select all


matrix new_a = a-65
for !i=1 to @rows(a)
for !j=1 to @columns(a)
if a(!i,!j)<=65 then
new_a(!i,!j) = 0
endif
next 
next

Posted: **Thu Oct 30, 2008 8:22 am**

Great thanks!

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