[R] Help creating a correlation matrix

From: Robert O'Brien <dinklemus_littlelog_at_yahoo.com>
Date: Tue, 20 May 2008 15:41:05 -0700 (PDT)

Hello all. I have 14 variables, named D2_1, D2_2,...,D2_14 (inherited from a data set). I would like to create a matrix of correlations, although I would be content in just learning how to create a proper do loop. I tried something like this:

(for i in 1:14){cor(D2_[i],D2_[i], use =

This is wrong, of course, but I don't know how to
"tell" R to run through D2_1, D2_2,...,D2_14 giving me
the correlations for each pair.

Any help or hints would be appreciated.


Robert O'Brien

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