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st: Element-by-element computation in Mata


From   <mjbaker@hunter.cuny.edu>
To   statalist@hsphsun2.harvard.edu
Subject   st: Element-by-element computation in Mata
Date   Mon, 10 May 2010 14:37:14 -0400 (EDT)

Dear Listers:
I am trying to do an element-by-element computation in mata but am not sure if it is possible. Given a matrix Z with elements z[I,j], what I would like to do is transform the elements of Z using scalars a and b to create a new matrix W as follows:
w[i,j]=a^2*z[i,j])-b
How might this be done using the element-by-element colon operator in mata, if it can be done? 
Best,
Matt Baker   
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