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Manually replace levels with "other"
fct_other(f, keep, drop, other_level = "Other")
A factor (or character vector).
Pick one of keep and drop:
keep
drop
keep will preserve listed levels, replacing all others with other_level.
other_level
drop will replace listed levels with other_level, keeping all as is.
Value of level used for "other" values. Always placed at end of levels.
fct_lump() to automatically convert the rarest (or most common) levels to "other".
fct_lump()
x <- factor(rep(LETTERS[1:9], times = c(40, 10, 5, 27, 1, 1, 1, 1, 1))) fct_other(x, keep = c("A", "B")) fct_other(x, drop = c("A", "B"))
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