Re: [R] the number of cluster
Are there any package that is using v-fold cross-validation algorithm to test the number the clusters? Thanks, Ming On Sat, Mar 19, 2005 at 12:44:42PM +0100, Uwe Ligges wrote: XP Sun wrote: hi, all, how to decide the number of cluster before you use kmeans and hclust? thank you in advance! Depends on your criterion. Best idea is always to use the brain and think about how many clusters are sensible for the particular task/problem/data. For hclust, you can also look at the dendrogram's height and distances of dissimilarities in order to cut. Uwe Ligges best -xpsun __ 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 __ 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 __ 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
Re: [R] the number of cluster
XP Sun wrote: hi, all, how to decide the number of cluster before you use kmeans and hclust? thank you in advance! Depends on your criterion. Best idea is always to use the brain and think about how many clusters are sensible for the particular task/problem/data. For hclust, you can also look at the dendrogram's height and distances of dissimilarities in order to cut. Uwe Ligges best -xpsun __ 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 __ 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
[R] the number of cluster
hi, all, how to decide the number of cluster before you use kmeans and hclust? thank you in advance! best -xpsun __ 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
