[R] reset row numbers when extracting a subset of a table

[Gabor Grothendieck]

I assume that by table you mean data frame.  Using the built in
data frame, BOD, try this:

> ix <- 2:4
> BOD[ix, ]
  Time demand
2    2   10.3
3    3   19.0
4    4   16.0
> data.frame(BOD[ix, ], row.names = seq_along(ix))
  Time demand
1    2   10.3
2    3   19.0
3    4   16.0


On Tue, Jun 24, 2008 at 11:23 AM,  <naw3 at duke.edu> wrote:
> Hi
>
> I created a new table by extracting only certain rows of table, but the row
> numbers in my new table correspond to those from the original table. Is there a
> way to reset the row numbers in my new table so that they start from one? like
> below:
>
> my table:
>    COL1   COL2
> 17   v      45
> 18   b      14
> 25   x      98
>
> desired:
>   COL1   COL2
> 1   v      45
> 2   b      14
> 3   x      98
>
> Thank you!
> -Nina
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>