ftp.nice.ch/pub/next/developer/languages/r

R.0.12.I.b.tar.gz
[Browse R.0.12.I.b.tar.gz] [README for R.0.12.I.b.tar.gz] 

R.0.12.N.b.tar.gz
[Browse R.0.12.N.b.tar.gz] [README for R.0.12.N.b.tar.gz] 

These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.