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From: ann@neuro.usc.edu (Ann Simpson Chapin)
Newsgroups: comp.lang.apl
Subject: Grade Down Columns of An Array
Message-ID: <33789@usc.edu>
Date: 21 Jun 91 03:57:51 GMT
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Does anyone know how to grade down the columns of an array (rank 2) so that
each column of the array is graded down as if it is a separate vector?
I do not want to have to create an interative function, and I also do not
want to have to create separate vectors from each column, grade down each
vector, and then reconcatenate the vectors into the original array.

I have received several suggestions from various sources about creating
nested indicies into the array to solve the problem, but everyone I know
that has tried to solve this problem in a noniterative fashion has not 
been able to.  If you can do this, please include the steps in your 
response.  I am using APL Plus II on a 386 with plenty on memory and a 
math coprocessor.....

Thanks, Ann