[R] any function in R similar to the "scan" function in SAS?

Gabor Grothendieck ggrothendieck at gmail.com
Thu May 6 03:17:42 CEST 2010


You can read from a character vector as if it were a file like this:

> x <- c("1-2", "3-4", "5-6")
> read.table(textConnection(x), sep = "-", col.names = c("one", "two"))
  one two
1   1   2
2   3   4
3   5   6


On Wed, May 5, 2010 at 12:45 PM, karena <dr.jzhou at gmail.com> wrote:
>
> I am wondering if there is any function in R that is similar to the "scan"
> function in SAS.
> I have a data.frame which has two columns as the following:
> one   two
> 1      2
> 3      4
> 5      6
>
> I used the "paste" function to create the third column: three <-
> paste(one,'-',two,sep="")
> so the data.frame is like this now:
> one   two   three
> 1      2       1-2
> 3      4       3-4
> 5      6       5-6
>
> My question is, is there any function in R that can do the opposite thing to
> what "paste" does?
> suppose I only have the third column "three" now, and I want to get the
> first and second columns. If in SAS, I can do the following:
> one = scan(three,1,'-')
> two = scan(three,-1,'-')
>
> How can I do this in R?
>
> thank you,
>
> karena
> --
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> Sent from the R help mailing list archive at Nabble.com.
>
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