adding labels to tapply results
Try using aggregate instead of tapply. If that does not answer your question, then try restating it or showing what your desired output would look like (see the posting guide referenced at the bottom of every post). -- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare greg.snow at imail.org 801.408.8111
-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
project.org] On Behalf Of eric lee
Sent: Monday, September 29, 2008 6:46 AM
To: r-help at r-project.org
Subject: [R] adding labels to tapply results
Hi,
How do I get labels onto the output from tapply? I need the labels to
merge
the output with another data frame. Thanks.
eric
d <- data.frame(cbind(x=1:3, y=1:10))
a <- with(d, tapply(y, x, sum))
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