[R] Factor function

Lisa lisajca at gmail.com
Mon Apr 25 23:03:15 CEST 2011


Thank you for your reply again. I really know that NA is not "NA". I just
want to figure out how to remove "NA" from the levels. Thanks again.

--
View this message in context: http://r.789695.n4.nabble.com/Factor-function-tp3473984p3474127.html
Sent from the R help mailing list archive at Nabble.com.



More information about the R-help mailing list