My apologies for the too-brief description of my problem. Let me start
again.
As I said before, I have R-2.11.1 installed on SLES 10.1. I have installed
on top of that Rcmdr v 1.6.0 and many associated packages (the default
suggestions during Rcmdr installation). Upon starting Rcmdr, I get the
following in the parent R terminal:
> library(Rcmdr)
Loading required package: tcltk
Loading Tcl/Tk interface ... done
Loading required package: car
Loading required package: MASS
Loading required package: nnet
Loading required package: survival
Loading required package: splines
I also get a dialog box saying that rgl is missing and some functions may
not be available (hrm...). If I request that rgl be installed, rgl is
downloaded, appears to compile with no errors, but at the end I see:
** testing if installed package can be loaded
Error : .onLoad failed in loadNamespace() for 'rgl', details:
call: dyn.load(file, DLLpath = DLLpath, ...)
error: unable to load shared library
'/data/packages/R-2.11.1/library/rgl/libs/rgl.so':
libpng14.so.14: cannot open shared object file: No such file or directory
ERROR: loading failed
* removing â/data/packages/R-2.11.1/library/rglâ
I would like to be able to create an ordination plot for a PCA. I found a
tutorial ([1]R with Rcmdr BASIC INSTRUCTIONS); it seemed like a good place
to start. Following along its section on PCA, I navigated to
Statistics:Dimensional Analysis:Principal-components analysis, which brings
up a dialog box. In the tutorial there is an image of the dialog box, and it
shows an option to create an ordination plot, however in the dialog box that
comes up on my installation, the Ordination Plot option is missing.
Is my problem with rgl related to the missing option? Any other suggestions
as to why the option is missing?
Any ideas as to why rgl won't load?
thanks,
Bill
--
-----------------------------------------------------
William C. Nelson, PhD
Research Asst Professor
University of Southern California,
College of Letters, Arts and Sciences,
Department of Biological Sciences,
Marine Environmental Biology Division,
Wrigley Institute for Environmental Studies
310-510-4097
[2]wcnel...@usc.edu
References
1. http://www.mzandee.net/%7Ezandee/statistiek/R/Rmanual_paper.pdf
2. mailto:wcnel...@usc.edu
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