Hello all,
I'm using the cloud function to plot the iris data as per the document:
http://www.stat.ucl.ac.be/ISpersonnel/lecoutre/stats/fichiers/_gallery.pdf

I'd like to change the point size to reflect a fourth variable, as done here
http://www.cis.hut.fi/projects/somtoolbox/download/pics2/shotvs2_origdata.png

Does anybody know how to do this? There doesn't seem to be an option in
cloud()

Thanks,
Richie

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