 > sweep( rawdata, 2, sens, '/' )
 
hope this helps,

 
________________________________

From: r-help-bounces@r-project.org on behalf of Tribo Laboy
Sent: Sat 3/22/2008 8:21 AM
To: r-help@r-project.org
Subject: [R] More elegant multiplication or division of a data frame with avector



Hello,

I am importing some raw voltage multichannel measurements into an R
data frame. I need to scale each column with the respective
sensitivity for that channel. I figured how to do it, but I am curious
if there isn't a more elegant way.

Now I start with something like this:

rawdata <- data.frame(rbind(c(1,2,3), c(4,5,6)))
sens <- c(2,4,6)


and I do this:
data <- as.data.frame(t(t(rawdata)/sens))

Any suggestions?

Cheers,

TL

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