Hi, I have a fairly simple question.
I have a dataset say A
A looks like the below
a h j
1 0.5 0.6
0.3 1 0.7
0.3 0.9 1
I would like to subtract a number from each entry of A [ lets say subtract 1 from A] therefore
Anew looks like
a h j
0 -0.5 -0.4
-0.7 0 -0.3
-0.7 0.1 0
Then replace the diagonals of Anew with the diagonals of A therefore Anew looks like below
a h j
1 -0.5 -0.4
-0.7 1 -0.3
-0.7 0.1 1
There are only 3 columns but I can have any number of columns
Thanks so much for your help
This would be extremely easy to do in PROC IML, if you have it available
Anew=A-1;
Anew2=Anew-diag(Anew)+diag(A);
This would be extremely easy to do in PROC IML, if you have it available
Anew=A-1;
Anew2=Anew-diag(Anew)+diag(A);
Thanks for your help that is what I used too thought there may be something other than using IML.
You could do this in a data step but it's a little messier. Why do it in a data step if you already have something that works?
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