Filter group of rows based on sum of values from different column

Question

I\'m trying to filter out whole rows in R, but only if the frequencies for a particular set don\'t add up to more than 5.

The data I have looks a bit like this. It\'s

Answer 1

We need to get the sum of 'FREQUENCY' and check whether it is greater than 5 in the filter after grouping by 'HEADWORD'

Words1 %>% 
     group_by(HEADWORD) %>% 
     filter(sum(FREQUENCY) >5)   
#   HEADWORD VARIANT FREQUENCY
#             
#1   KNIGHT  knight         6
#2   KNIGHT   kniht         2 
#3   KNIGHT    knyt         1