[R] How to select given row of conditionally subsetted dataframe?
Eric Berger
er|cjberger @end|ng |rom gm@||@com
Thu Oct 14 09:59:03 CEST 2021
df[(df$Y>0.2) & (df$X<10),][2,]
On Thu, Oct 14, 2021 at 10:52 AM Luigi Marongiu <marongiu.luigi using gmail.com>
wrote:
> Hello,
> I have selected a subset of a dataframe with the vector syntax (if
> this is the name):
> ```
> > df[(df$Y>0.2) & (df$X<10),]
> Y X
> 10 0.2200642 1.591589
> 13 0.2941828 1.485951
> ```
> How can I select only the second row? I only managed to get the whole
> of whole columns:
> ```
> > df[(df$Y>0.2) & (df$X<10),2]
> [1] 1.591589 1.485951
> > df[(df$Y>0.2) & (df$X<10),][2]
> X
> 10 1.591589
> 13 1.485951
> > df[(df$Y>0.2) & (df$X<10),][1]
> Y
> 10 0.2200642
> 13 0.2941828
> ```
> Thank you
>
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