I am sorry for the noise, but with(MyDataFrame[, 1:3])
should have been with(cor(MyDataFrame[, 1:3])) Best, Jorge On Thu, Apr 7, 2011 at 3:21 PM, Jorge Ivan Velez <> wrote: > Hi Dmitry, > > You might try > > with(MyDataFrame[, 1:3]) > > is variable1, variable2 and variable3 correspond to the first three columns > of your data, or > > with( MyDataFrame( cor( cbind( variable1, variable2, variable3) ) ) ) > > otherwise. > > HTH, > Jorge > > > > On Thu, Apr 7, 2011 at 3:09 PM, Dmitry Berman <> wrote: > >> Listers, >> >> I have a question regarding correlation matrices. It is fairly straight >> forward to build a correlation matrix of an entire data frame. I simply >> use >> the command cor(MyDataFrame). However, what I would like to do is >> construct >> a smaller correlation matrix using just three of the variable out of my >> data >> set. >> >> When I run this: >> cor(MyDataFrame$variable1, MyDataFrame$variable2,MyDataFrame$variable3) I >> get an error. >> >> Is there a way to do this through a built in function or is this something >> I >> have to construct manually? >> >> Thanks >> >> [[alternative HTML version deleted]] >> >> ______________________________________________ >> 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. >> > > [[alternative HTML version deleted]] ______________________________________________ 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.
