Hi,
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of michele lux
Sent: Dienstag, 14. September 2004 10:44
To: [EMAIL PROTECTED]
Subject: [R] erase columns
Can somebody remember me which is the command to erase
columns from a data frame?
Thanks Michele
I hope the following code-piece helps what you are looking for:
mydf <- as.data.frame(matrix(runif(100),ncol=5))
### if you want to erase the third column, do:
mydf <- mydf[,-3]
mydf2 <- as.data.frame(matrix(runif(100),ncol=20))
### if you want to erase the first, third and twentieth column, do:
mydf2 <- mydf2[,-c(1,5,20)]
Ciao,
Roland
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