Hello, The subject could be articulated better ;(, but I am stuck...
In any case, my problem is the following: I am trying to use knn, and it requires a classification. So I am using cmeans for this. What I want to do is add the classification as a new column in my data.frame (to be used for knn). Now, the trick is that I would like to name the output of the cmeans classification based on the number of clusters (e.g. cmeans30 for 30 clusters). To do this, I do the following: [The file for this example can be downloaded from: http://mit.edu/costas/www/station-1-120103.txt ] library(e1071) lala <- read.csv("station-1-120103.txt",header=F) ll <- cbind(lala$V25,lala$V22) num.of.clust=50 assign(paste("cmeans",num.of.clust,sep=""),cmeans(ll,num.of.clust)) and sure enough if I type cmeans50 I get the output of this cmeans run. This also works, naturally: llc<-cbind(ll,cmeans50$cluster) [and I now get three columns, where the third column is the cluster ID.] However, when I do what I really want (i.e. not call cmeans50 explicitly, but through the name that I constructed programmatically): llc <- cbind(ll,(paste("cmeans",num.of.clust,sep=""))$cluster) I only get two columns (the last term has no effect). Any ideas as to what I am doing wrong? Thanks a lot! Costas -- Constantinos Antoniou, Ph.D. Department of Transportation Planning and Engineering National Technical University of Athens 5, Iroon Polytechniou str. GR-15773, Athens, Greece ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
