One idea: Pick the three largest clusters, their centers determine a plane. project your data into that plane.
albyn On Wed, May 18, 2011 at 06:55:39PM +0200, Claudia Beleites wrote: > Hi Meng, > > > I would like to use R to perform k-means clustering on my data which > >included 33 samples measured with ~1000 variables. I have already used > >kmeans package for this analysis, and showed that there are 4 clusters in my > >data. However, it's really difficult to plot this cluster in 2-D format > >since the "huge" number of variables. One possible way is to project the > >multidimensional space into 2-D platform, but I could not find any good way > >to do that. Any suggestions or comments will be really helpful! > For suggestions it would be extremely helpful to tell us what kind > of variables your 1000 variables are. > > Parallel coordinate plots plot values over (many) variables. Whether > this is useful, depends very much on your variables: E.g. I have > spectral channels, they have an intrinsic order and the values have > physically the same meaning (and almost the same range), so the > parallel coordinate plot comes naturally (it produces in fact the > spectra). > > Claudia > > > > > >Thanks, > > > >Meng > > > > [[alternative HTML version deleted]] > > > >______________________________________________ > >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. > > > -- > Claudia Beleites > Spectroscopy/Imaging > Institute of Photonic Technology > Albert-Einstein-Str. 9 > 07745 Jena > Germany > > email: claudia.belei...@ipht-jena.de > phone: +49 3641 206-133 > fax: +49 2641 206-399 > > ______________________________________________ > 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. > -- Albyn Jones Reed College jo...@reed.edu ______________________________________________ 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.