[R] how to concatenate factor vectors?

Sam Steingold sds at gnu.org
Thu Oct 18 17:31:26 CEST 2012

> * Jeff Newmiller <wqarjzvy at qpa.qnivf.pn.hf> [2012-10-18 07:53:24 -0700]:
> If you HAVE defined your factors using explicit levels definitions, you
> should have no trouble combining them.


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