> Hi,
>
> I have tried to develop multidimensional scaling for 3D space using
> PCA without success, yet;-) Is there some application ready in R?
>
> Cheers,
>
> Atte
>
I found xgobi, but when I try to run example I get some command not found
-errors.
Atte
> data(morsecodes) ## from the XGobi/XGvis data, see ?morsecodes
> mc.row <- paste(morsecodes.row[,1],morsecodes.row[,2])
>
> xgvis(dmat = morsecodes.dist,
+ pos = morsecodes.pos,
+ rowlab = mc.row,
+ colors = morsecodes.colors,
+ glyphs = morsecodes.glyphs,
+ lines = morsecodes.lines,
+ linecolors = morsecodes.linecolors)
xgvis /tmp/RtmpDaR3cT/xgvis-6058ed8 & >
> ##> 2) Show lines by hitting "l" with the mouse over the
plot.
> ##> 3) Examine morsecode labels by hitting "i" and mousing
around on the plot.
> ##> 3b) Press "r" (on the plot) to switch 3D rotation in
xgobi.
> ##> 4) Run MDS in 3D by clicking "Run MDS" (in xgvis).
> ##> 5) Speed up the optimization by increasing the
"Stepsize" with the slider.
> ##> The "Stress function" value may go as low as 0.1925
(MM).
> ##> 6) When the optimization calms down, click "Run MDS" to
toggle MDS off.
> ##> 7) Rotate the MDS configuration in 3D {by "r" with mouse
over plot}.
> ##> 8) Increase the rotation speed with the slider in the top left and
> ##> control the rotation direction by dragging the mouse on the
plot.
> ##> 9) You can check out the initial configuration by
>
> ## In order to have no color warning :
> Mcolors <- unique(morsecodes.colors)
/bin/sh: line 1: xgvis: command not found> (Mcolors <- paste("*brushColor", 0:(length(Mcolors)-1),":
", Mcolors, sep=""))
[1] "*brushColor0: SkyBlue" "*brushColor1: Green"
[3] "*brushColor2: Yellow" "*brushColor3: HotPink"
[5] "*brushColor4: Red" >
> xgobi(morsecodes.pos, collab = morsecodes.col, rowlab = mc.row,
+ colors = morsecodes.colors,
+ glyphs = morsecodes.glyphs,
+ lines = morsecodes.lines,
+ linecolors = morsecodes.linecolors,
+ resources= c("*showLines: True", Mcolors))
xgobi -title 'morsecodes.pos' -std mmx
/tmp/RtmpDaR3cT/xgobi-mrscd56e509fe &
/bin/sh: line 1: xgobi: command not found>
> ##> This XGobi window will be linked with
> ##> the XGvis window for glyph-color brushing and labeling.