I haven't been following this thread so I may be off base, but are you sure you don't mean plot(ca(table))?
ca is a function from the ca package -- you want to plot the output of the function, not the function itself. Sorry if this is unhelpful, Michael On Wed, Feb 22, 2012 at 10:02 AM, aoife <aoife.m.dohe...@gmail.com> wrote: > Thank you for the reply, my problem is that i don't understand the error that > plot(ca) is giving me: > >> plot(ca) > Error in matrix(as.matrix(obj), nrow = I, ncol = J) : > non-numeric matrix extent > > > so just to put this in context: my workscreen looks like this: >> table > A B C > G1 1 34.00 231.0 > G2 231 1.00 0.1 > G3 12 0.02 23.0 > >> library(ca) > Loading required package: rgl > Warning messages: > 1: In rgl.init(initValue) : RGL: unable to open X11 display > 2: In fun(libname, pkgname) : error in rgl_init > > >> ca(table) > > Principal inertias (eigenvalues): > 1 2 > Value 0.924588 0.007655 > Percentage 99.18% 0.82% > > > Rows: > G1 G2 G3 > Mass 0.498950 0.435362 0.065689 > ChiDist 0.911602 1.079139 0.401921 > Inertia 0.414636 0.506996 0.010611 > Dim. 1 -0.947585 1.122145 -0.239642 > Dim. 2 -0.326025 -0.194244 3.763758 > > > Columns: > A B C > Mass 0.457683 0.065689 0.476628 > ChiDist 1.046690 0.943948 0.883798 > Inertia 0.501419 0.058531 0.372293 > Dim. 1 1.088538 -0.923587 -0.917983 > Dim. 2 -0.001466 -3.656541 0.505351 > >> plot(ca) > Error in matrix(as.matrix(obj), nrow = I, ncol = J) : > non-numeric matrix extent > > :( > > > -- > View this message in context: > http://r.789695.n4.nabble.com/Installing-rgl-tp865867p4410607.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. ______________________________________________ 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.
