R first row by group

df <- data.frame(group=c("a", "b"), value=1:8)
## Order the data frame with the variable of interest
df <- df[order(df$value),]
## Aggregate
aggregate(df, list(df$group), FUN=head, 1)

Source: stackoverflow.com

Similar codes

2 votes146 views1 answer
Dplyr replace na
R
0 vote145 views1 answer
Rnorm in r
R
0 vote267 views1 answer
Index in r
R
-1 vote153 views1 answer
Legend in R
R
1 vote169 views1 answer
R merge inner join
R
0 vote159 views1 answer
R: network randomization test igprah stakoverflow
R
0 vote129 views1 answer
Gsub special characters r
R
2 votes165 views1 answer
Convert latin accents to ascii R
R
0 vote102 views1 answer
R save dataframe as txt
R
0 vote153 views1 answer
Two letter country code in r
R