[R] Select only cases with negative values

[Henrique Dallazuanna]

Try this:

dat.lm <-lm(c~d, subset=d < 0)


On Sat, Oct 18, 2008 at 7:03 PM, Michael Just <mgjust at gmail.com> wrote:
> Hello,
> I was wondering if there was a way to only select cases my from data
> frame that contained a negative value?
>
>> c<-c(1,2,3,4,5,6,7,8,9,10)
>> d<- c(-1,2,-3,-4,5,6,-7,8,-9,10)
>> f <- cbind(c,d)
>> dat <-data.frame(f)
>> dat.lm <-lm(c~d)
>
> If I wanted to only use the rows that had a negative value in column d
> for my regression, how could I make that selection?
>
> Thanks,
> Michael Just
>
> ______________________________________________
> 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.
>



-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O