Hello,
If the sub-df has more than 2 rows,
tail(df[(df$Y>0.2) & (df$X<10),], 1)
Hope this helps,
Rui Barradas
Às 08:51 de 14/10/21, Luigi Marongiu escreveu:
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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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
