[R] read.delim: only first column import

[Liaw, Andy]

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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