cran2deb for Ubuntu?

Sorry if this has been answered somewhere else (didn't see it), but is
cran2deb fully compatible with Ubuntu?

Novice question: I use install.packages() within R. The pros of using
sudo apt-get instead seem obvious, but are there any cons I should
know about?

Thanks

Etienne Lalibert?
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School of Forestry
University of Canterbury
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www.elaliberte.info