[R] FW: reshaping data

Lo, Ken
Wed, 21 Oct 2009 19:37:30 -0000

I apologize for the previous post using HTML.  Haven't posted for a while
and e-mail client default.

Best,

Ken


Hi all,

I have a matrix of correlation values between all pairwise comparison in an
experiment.? For example, I have 2 time points (1,2) each in triplicate. Thus, I
have the following matrix

	 1-1	 1-2	 1-3	 2-1	 2-2	 2-3
 1-1	NA	...	...	...	...	...
 1-2	...	NA	...	...	...	...
 1-3	...	...	NA	...	...	...
 2-1	...	...	...	NA	...	...
 2-2	...	...	...	...	NA	...
 2-3	...	...	...	...	...	NA

What I'd like to do is to reshape the data so that it would be easy for me
to summarize all the correlation values across the triplicates (i.e. mean) for
time point 1 and 2. ?It sounds as though the reshape package should be able to
do this, but the solution is not obvious to me. ?Can anybody help?

Best,

Ken