[R] reset row numbers when extracting a subset of a table
Gabor Grothendieck
ggrothendieck at gmail.com
Tue Jun 24 18:22:00 CEST 2008
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.
>
More information about the R-help
mailing list