4 Mar
2016
4 Mar
'16
09:05
df$d <- df$label %in% unique(df$label[duplicated(df$label)]) df label value d 1 A 4 TRUE 2 B 3 TRUE 3 C 6 FALSE 4 B 3 TRUE 5 B 1 TRUE 6 A 2 TRUE 7 A 4 TRUE 8 A 4 TRUE
On 03/03/16 22:36, Wagner Tassinari wrote:
df <- read.table(header=TRUE, text=' label value A 4 B 3 C 6 B 3 B 1 A 2 A 4 A 4 ')