[R] correlation by subset

From: Krishna <snvk4u_at_gmail.com>
Date: Wed 24 Aug 2005 - 21:17:01 EST

Hi all

Having searched the available documentation on R, I request for help in sorting out the underlying problem.

I have a huge dataset containing 2 variables x and y, which is a daily price series.

I would like to observe the quarterly correlations among these two variables. Is there anyway where i can calculate cor.coeff by using a grouping variable in R.

thanks in advance for the help



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https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Wed Aug 24 21:25:26 2005

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