From bwheeler@echip.com  Tue Feb 13 00:38:48 2001
From: bwheeler@echip.com (bwheeler@echip.com)
Date: Tue, 13 Feb 2001 01:38:48 +0100 (MET)
Subject: [Rd] Sticky levels (PR#846)
Message-ID: <200102130038.BAA29298@pubhealth.ku.dk>

This isn't actually a bug, but what is one to do
in cast of a typo?

> citizen<-factor(c("uk","as","no","au","uk","us","us"))
> levels(citizen)
[1] "as" "au" "no" "uk" "us"
> citizen[2]<-"us"
> citizen
[1] uk us no au uk us us
Levels:  as au no uk us    ** [STICKY "as"] **
> citizen[2]<-"gs"
Warning message: 
invalid factor level, NAs generated in:
[<-.factor(*tmp*, 2, value = "gs")

-- 
Bob Wheeler --- (Reply to: bwheeler@echip.com)
        ECHIP, Inc.

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[Rd] Sticky levels (PR#846)
bwheeler@echip.com