[R] forcing graphs to all black ink

[Mark Hall]

Is there an easy way, for MCLUST in particular, to force its graphical
output to all black and not use colors to show the clusters/groups?
It shows the groups quite nicely by using triangles, crosses, etc.
Unfortunately, my printer doesn't convert reds and yellows too nicely
and the result is a indistinct figure on the page.  (Yes, I have access
to
a color printer but my intended publication venue charges outrageous
page fees for color plates... ).

Thanks, Mark Hall
markhall at gol.com




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