On 10/05/2010 7:36 AM, Ruben Garcia Berasategui wrote:
Dear all,
when trying to replicate John M. Quick's example for correlations between
multiple variables posted on:
http://rtutorialseries.blogspot.com/2009/11/r-tutorial-series-zero-order.html
with R 2.11.0 (GUI 1.33) using my MacBook Pro with OX X 10.5.8 I got the
following error message
datavar<-read.csv("dataset_readingTests.csv")
cor(datavar)
Error in cor(datavar) : 'x' must be numeric
The funny thing is that when I tried to do the same example using R 2.10.1, it
worked fine.
Any ideas regarding how to solve this problem?
I would think the first step would be to ask Mr. Quick what's wrong.
Duncan Murdoch
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