[R] read.delim: only first column import
Liaw, Andy
andy_liaw at merck.com
Fri Apr 15 16:25:31 CEST 2005
You can use colClasses; e.g.,
> write.table(iris, file="iris.dat", sep="|", quote=FALSE, row=FALSE)
> test <- read.delim("iris.dat", sep="|", header=TRUE,
> colClass=c("numeric", rep("NULL", 4)))
> head(test)
Sepal.Length
1 5.1
2 4.9
3 4.7
4 4.6
5 5.0
6 5.4
Andy
> From: Christoph Lehmann
>
> Hi
> if I use read.delim, I can specify how many lines I want to import.
> Is there also a way to specify that, e.g. I want only the
> first column
> field of each line to have imported?
>
> thanks for a hint
> cheers
> christoph
>
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