Hi Mandy and esteemed R users, I'm searching for the functions you used to produce the shaded bounding box (and axis for that matter) of the plot image* attached to your orginal post. Would you or anyone else be patient enough to post an example of such code or point me to the relevant functions? I think my PCA would certainly appear a lot more '3d' with such a shaded box & axis. tia, Karl * http://tolstoy.newcastle.edu.au/R/e10/help/att-3419/vol_surface.png -- Karl Brand <k.brand at erasmusmc.nl> Department of Genetics Erasmus MC Dr Molewaterplein 50 3015 GE Rotterdam P +31 (0)10 704 3409 | F +31 (0)10 704 4743 | M +31 (0)642 777 268