[Solved] Subsetting multiple vectors based on a specific condition

by


Well, I am not sure if Tail and Class are part of the same dataframe or are two seperate vectors. If they are two seperate vectors, maybe you can merge the two vectors in a dataframe

df <- data.frame(Tail = as.character(Tail), Class = as.character(Class))

and then with dplyr you can try, 

library(dplyr)
df %>% 
   group_by(Tail) %>%
   summarise(uniq=n_distinct(Class)) %>%
   filter(uniq ==2)

#   Tail   uniq
#  (fctr)  (int)
#1  B-123     2
#2  B-888     2

2

solved Subsetting multiple vectors based on a specific condition