The problem is that in the expression polychor(vars[i], vars[j]), vars[i] and vars[j] refer to the names of the variables, not the variables themselves. So, use sdi[,i] and sdi[,j] instead.
On 19/10/06, Kum-Hoe Hwang <[EMAIL PROTECTED]> wrote: > Hi > > I have used a polycor package for categorical correlation coefficients. > I run the following script. But there were no results. > > Could you tell me how to correct the script? > > Thanks in advance, > > vars <- names(sdi) > for (i in 1:length(vars)) { > for (j in 1:length(vars)) { > paste(vars[i]," and ", vars[j]) > polychor(vars[i], vars[j]) > # corr > } > } > > > > -- > Kum-Hoe Hwang, Ph.D.Phone : 82-31-250-3516Email : [EMAIL PROTECTED] > > ______________________________________________ > R-help@stat.math.ethz.ch 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. > -- ================================= David Barron Said Business School University of Oxford Park End Street Oxford OX1 1HP ______________________________________________ R-help@stat.math.ethz.ch 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.