> -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- > project.org] On Behalf Of muzz56 > Sent: Wednesday, November 16, 2011 12:28 PM > To: r-help@r-project.org > Subject: Re: [R] Pairwise correlation > > Thanks Peter. I tried this after reading in the csv (read.csv) and > converted the data to matrix (as.matrix). But when I tried the > correlation, > I keeping getting the error (x must be numeric) yet when I view the > data, > its numeric. >
What does R tell you if you execute the following? str(x) Just because the data looks like it is numeric when it prints doesn't mean it is. Dan Daniel J. Nordlund Washington State Department of Social and Health Services Planning, Performance, and Accountability Research and Data Analysis Division Olympia, WA 98504-5204 ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.