Hi All, I was using the following command for performing kmeans for Iris dataset.
Kmeans_model<-kmeans(dataFrame[,c(1,2,3,4)],centers=3) This was giving proper results for me. But, in my application we generate the R commands dynamically and there was a requirement that the column names will be sent instead of column indices to the R commands.Hence, to incorporate this, i tried using the R commands in the following way. kmeans_model<-kmeans((SepalLength+SepalWidth+PetalLength+PetalWidth),centers=3) or kmeans_model<-kmeans(as.matrix(SepalLength,SepalWidth,PetalLength,PetalWidth),centers=3) In both the ways, we found that the results are different from what we saw with the first command (with column indices). can you please let us know what is going wrong here.If so, can you please let us know how the column names can be used in kmeans to obtain the correct results? Many thanks, Raji -- View this message in context: http://r.789695.n4.nabble.com/Help-in-kmeans-tp3430433p3430433.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.
