Hello. I've found a new significant bug in the "R" package from Slitaz 5.0 repos : this version isn't compiled with Cairo support (checked with 'capabilities() function) . So, it's impossible to achieve the classical graphics demo from "R".
Try this :
1/ launch R console
2/ type demo(graphics) and hit <return> key
3/ starts the ploting ...
... and the demo stops with R claiming about missing font :-(
I hope it will help packagers.