[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
[R] how to draw the data set processed by hclust?
hi, all i hava a dataset formated as follow: x1 y1 z1 x2 y2 z2 x3 y3 z3 ... how to cluster it with hclust? and the draw the data with color of cluster? 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
[R] cl$cluster of kmeans
hi, all, i had a problem when i used kmeans as follow: pp - scan(m0028.data, quiet= TRUE) x - matrix(pp, nc=3, byrow=TRUE) cl-kmeans(x, 4, 20) plot(x, col=cl$cluster) save(cl$cluster, file=m0028.ks, ascii=TRUE) Error in save(cl$cluster, file = m0028.ks, ascii = TRUE) : Object cl$cluster not found when i wanted to save the vector of cluster only, a reflection was thrown out as that. could i save cl$cluster only? how? thank you in advance. best, xp sun __ 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] How to use a matrix in pcurve?
Hi, Everyone, I want to calculate the principal curve of a points set. First I read the points'coordinate with function scan, then converted it to matrix with the function matrix, and fit the curve with function principal.curve. Here is my data in the file bmn007.data: 0.023603 -0.086540 -0.001533 0.024349 -0.083877 -0.001454 .. .. 0.025004 -0.083690 -0.001829 0.025562 -0.083877 -0.001857 0.026100 -0.083877 0.90 0.025965 -0.083877 0.002574 and the code as follow: pp - scan(bmn007.data, quiet= TRUE) x - matrix(pp, nc=2, byrow=TRUE) fit - principal.curve(x, plot = TRUE) points(fit,col=red) By now, I got a right result. But when i changed to use pcurve with matrix x as pcurve(x), an error was thrown as following: Estimating starting configuration using : CA Error in h %*% diag(sqrt(d)) : non-conformable arguments How to convert a matrix to the format could be accepted by pcurve? Any help appreciated! Regards - Sun __ [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
