> I am trying to produce a heatmap of pairwise correlations, but since the > matrix is > symmetric, I only need either the upper or the lower triangle. I have > scoured the > web and R documentation, but I have not been able to find a way to produce > such a > figure. Is there a simple way to produce a heat map with only the part above > or > below the diagonal?
You might want to check out the LDheatmap() package which can generate the plots you describe. The help indicates that it accepts a matrix of pair-wise linkage disequilibrium measures, one of which is R^2 (the correlation coefficient between loci), but I suspect you could simply pass it a matrix of correlation coefficents. Hope that helps, Neil -- "In mathematics you don't understand things. You just get used to them." - Johann von Neumann Email - [EMAIL PROTECTED] / [EMAIL PROTECTED] Website - http://slack.ser.man.ac.uk/ Photos - http://www.flickr.com/photos/slackline/ ______________________________________________ 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.
