[R] No color in plotting

[Michael Artz]

Hi I am having a problem with plot () and ggplot ().  When I call one of
these functions, the plotting area starts to look as though it is working,
but nothijg ever is visible.  Unless it was a dendrogram.  Woth the bar
chart, the plotting area just had an x and y axis and nothing else. I tried
a bar chart with ggplot and i tried to plot a tree result from rpart ().  I
couldnt see anything plotted.  Is there some way I should be
troubleshooting this?  Im thinking its an R config I did or didnt do.  I
really have no idea though.

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