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- a <- c(rep(1:2,3))
- b <- c("A","A","B","B","B","B")
- df <- data.frame(a,b)
- > str(b)
- chr [1:6] "A" "A" "B" "B" "B" "B"
- a b
- 1 1 A
- 2 2 A
- 3 1 B
- 4 2 B
- 5 1 B
- 6 2 B
- a b
- 1 1 B
- 2 2 B
- df %>% group_by(a) %>% summarize (b = most.frequent(b))
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