[R] how to concatenate factor vectors?

Sam Steingold sds at gnu.org
Thu Oct 18 16:32:57 CEST 2012

> * Bert Gunter <thagre.oregba at trar.pbz> [2012-10-17 23:21:44 -0700]:
> However, Is level "5" in 'a' the same as level "5" in 'b' ?

yes, of course.
would anyone want to _different_ factors with identical string representations?!

Sam Steingold (http://sds.podval.org/) on Ubuntu 12.04 (precise) X 11.0.11103000
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