Hello all,
I have a matrix whose column names look like
a1 a2 b1 b2 b3 c1 c2
1 2 3 7 1 3 2
4 6 7 8 1 4 3
Now, I can have any number of a's. not just two as shown above and same goes
for b's and c's. I need to extract all the a's columns and put them in another
matrix, extract all b's columns and put them in some matrix and same goes for
"c". How can I identify such pattern and get subsets of this matrix depending
on columns names?
I will appreciate a quick reply.
Thanks a lot.
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