How to extract the row with min or max values?

Question

With a dataframe like this one:

        ID  Year    Temp    ph
1       P1  1996    11.3    6.80
2       P1  1996    9.7     6.90
3       P1  1997    9.8              


        

Answer 1

You can include your which.max call as the first argument to your subsetting call:

df[which.max(df$Temp),]