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Fill down missing values with the latest non-missing value
filldown(x)
A vector or list with the NA's replaced by the last observed value.
A vector
Claus Ekstrom <claus@rprimer.dk>
a <- c(1:5, "Howdy", NA, NA, 2:3, NA) filldown(a) filldown(c(NA, NA, NA, 3:5))
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