[R] Installing rgl

[R. Michael Weylandt]

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.doherty at 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
>
> :(
>
>
> --
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