[Rd] `[<-.data.frame` sets rownames incorrectly
Hervé Pagès
hpages at fredhutch.org
Wed Nov 22 03:23:40 CET 2017
On 11/21/2017 06:19 PM, Hervé Pagès wrote:
> Hi,
>
> Here is another problem with data frame subsetting:
>
> > df <- data.frame(aa=1:3)
> > value <- data.frame(aa=11:12, row.names=c("A", "B"))
>
> > `[<-`(df, 4:5, , value=value)
> aa
> 1 1
> 2 2
> 3 3
> A 11
> B 12
>
> > `[<-`(df, 5:4, , value=value)
> aa
> 1 1
> 2 2
> 3 3
> B 12
> A 11
This actually produces:
> `[<-`(df, 5:4, , value=value)
aa
1 1
2 2
3 3
A 12
B 11
but should instead produce:
aa
1 1
2 2
3 3
B 12
A 11
sorry for the confusion.
H.
>
> For this last result, the rownames of the 2 last rows should
> be swapped.
>
> H.
>
--
Hervé Pagès
Program in Computational Biology
Division of Public Health Sciences
Fred Hutchinson Cancer Research Center
1100 Fairview Ave. N, M1-B514
P.O. Box 19024
Seattle, WA 98109-1024
E-mail: hpages at fredhutch.org
Phone: (206) 667-5791
Fax: (206) 667-1319
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