[R] [PS] Column sums from a data frame (without the headers)
Ben Fairbank
BEN at SSANET.COM
Fri Feb 29 18:15:33 CET 2008
as.vector(col.Sums())
Ben
-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
On Behalf Of Jason Horn
Sent: Friday, February 29, 2008 11:03 AM
To: R-help at stat.math.ethz.ch
Subject: [PS] [R] Column sums from a data frame (without the headers)
Does anyone know how to get a vector of column sum from a data frame?
You can use colSums(), but this gives you a object of type "numeric"
with the column labels in the first row, and the sums in the second
row. I just want a vector of the sums, and I can't figure out a way
to index the "numeric" object.
Thanks!
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