Message-ID: <loom.20081220T232310-637@post.gmane.org>
Date: 2008-12-20T23:26:25Z
From: oliver
Subject: NA, where no NA should (could!) be!
Hello,
ok, I found the problem!
I now have:
res_size_by_host <- tapply( selected$size, factor(selected$host), sum)
instead of
res_size_by_host <- tapply( selected$size, selected$host, sum)
and now it works.
IMHO this is strange, because selected$host is already a factor!
I don't know, why this must be done...
...someone of the R-experts might know it...
...and may explain it...?!
Ciao,
Oliver