For a simple 3-D scatter plot, I've settled on a perl script that converts any three principle components (calculated by R) into a 3-D VRML scatterplot (.wrl) file that can viewed with most web browsers. The script is adapted from an online tutorial http://staff.washington.edu/larryg/Classes/Rvrml/zz-hand.html. This suits my needs nicely, since our lab uses a web interface to most of our data. I'm interested in how people are using ggobi for microarray work. Jeff Sorenson > > Message: 1 > Date: Tue, 28 Jan 2003 07:30:57 -0500 > From: Robert Gentleman <rgentlem@jimmy.harvard.edu> > To: Laurent Gautier <laurent@cbs.dtu.dk> > Cc: Michael Benjamin <msb1129@bellsouth.net>, > bioconductor@stat.math.ethz.ch > Subject: Re: [BioC] PCA plots > > > I think that we are likely to leave that to ggobi -- they have done a > lot of stuff and the interface to R is pretty reasonable these days. > > On Tue, Jan 28, 2003 at 05:55:31AM +0100, Laurent Gautier wrote: > > On Mon, Jan 27, 2003 at 11:29:39PM -0500, Michael Benjamin wrote: > > > Hi, all. > > > > > > Are there any plans to spice up the principal components > analysis tools > > > in R? Many commercial packages offer interactive manipulation of 3D > > > biplots. We are almost there already, with a fast (if homely- looking) > > > biplot in "princomp." Any takers? > > > > AFAIK, R can interface with ggobi. By linking selections of individuals > > in different planes of projection, you should be able to achieve it > > (and go beyond "only" 3 dimensions, if I understood what you meant > > by "interactive manipulation"). > > Check the screenshots at www.ggobi.org to get an idea. > > > > > > Hopin' it helps, > > > > > > L. > > > > _______________________________________________ > > Bioconductor mailing list > > Bioconductor@stat.math.ethz.ch > > http://www.stat.math.ethz.ch/mailman/listinfo/bioconductor > > -- > +----------------------------------------------------------------- > ----------+ > | Robert Gentleman phone : (617) 632-5250 > | > | Associate Professor fax: (617) 632-2444 > | > | Department of Biostatistics office: M1B20 > | Harvard School of Public Health email: > rgentlem@jimmy.dfci.harvard.edu | > +----------------------------------------------------------------- > ----------+ > > > End of Bioconductor Digest