>>>>> On Wed, 16 Dec 2009 07:05:11 +0100 (CET), >>>>> christopher a hane (cah) wrote:
> Full_Name: Chris Hane > Version: 2.10.1 > OS: Windows > Submission from: (NULL) (198.203.181.181) > When using barchart in the flexcust package, setting mcol=NULL to avoid the > lollipops causes an error. Each panel shows the text message "Error using > packet n replacement has length zero." where n is the panel number. >> data(iris) >> cl <- cclust(iris[,-5], k=3) >> barplot(cl, mcol=NULL) #works fine >> barchart(cl, mcol=NULL) # oops Yes, that's a bug in flexclust. I'll fix it for the next release. In the meantime you can use barchart(cl, mcol=NA) which has the same effect for me. > FWIW, as the data of the clusters is scaled showing the colMeans > for the centers is misleading. The global mean of each column is > 0, not the colMean of the centers. Hmm, I am not sure I understand this paragraph. I agree that showing the global mean makes no sense for centered data, but the iris data are not centered. I don't think that barcharts like the above make sense in all possible situations. I mainly use them for binary data where I want to see which variables have a high/low percentage of ones in which cluster (=bars), and what the difference to the global mean is. Best, Fritz ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
