1\documentclass[11pt]{article}
2\usepackage{graphics}
3
4\begin{document}
5
6\title{DescribeDisplay plugin for {\tt ggobi}}
7\author{Deborah F. Swayne and Di Cook}
8\maketitle
9
10\section{Output}
11
12On the ``Tools'' menu select ``Save Display Description''. This brings
13up the panel:
14
15\bigskip
16\centerline{\pdfimage width 2.5in {DescribeDisplay.jpg}}
17\bigskip
18
19Saving the display generates output that can be read into R (or
20Splus). For example, the 2D tour window prints out as follows:
21
22\begin{verbatim}
23display = list(colormap = list(name='Set1 9',
24ncolors=9,
25type=3,
26system='rgb',
27backgroundColor = c(0.000,0.000,0.000),
28hiddenColor = c(0.300,0.300,0.300),
29accentColor = c(1.000,1.000,1.000),
30foregroundColors = list(c(1.000,1.000,0.200),...),
31title='NCI tour 1',type='scatterplot',nplots=1,
32plots = list(list(type='scatterplot',projection='2D Tour',scale=c(0.700, 0.700),
33tformLims=c(xmin=0.000, xmax=0.000, ymin=0.000, ymax=0.000),
34planarLims=c(xmin=-19924.561, xmax=27163.439, ymin=19924.561, ymax=-19924.561),
35points = list(index = c(0,1,2,3,...)
36x = c(7133.96,9223.29,6434.39,10577.8,...)
37y = c(-10675.4,-8255.06,-10565.8,-12073,...)
38color = c(0,0,0,0,...)
39glyphtype = c(6,6,6,6,...)
40glyphsize = c(1,1,1,1,...)
41hidden = c(0,0,0,0,...)
42),
43tour2dparams = list(F = c(0.011,-0.172,-0.019,...))
44showMissing=1,showPoints=1,showDirectedEdges=0,
45  showUndirectedEdges=0,showArrowheads=0,)
46\end{verbatim}
47
48\section{Using R}
49
50The file can be read directly into R using:
51
52\verb#plot1<-source(filename)#
53
54\noindent and elements accessed with commands such as:
55
56\verb#F1<-matrix(plot1$value$plots[[1]]$tour2dparams$F,ncol=2,byrow=F)#
57
58
59\end{document}
60