Fill down NA with the last observed observation

Fill down missing values with the latest non-missing value

filldown(x)

Arguments

x	A vector

Value

A vector or list with the NA's replaced by the last observed value.

Examples

a <- c(1:5, "Howdy", NA, NA, 2:3, NA)
filldown(a)
#>  [1] "1"     "2"     "3"     "4"     "5"     "Howdy" "Howdy" "Howdy" "2"    
#> [10] "3"     "3"    
filldown(c(NA, NA, NA, 3:5))
#> [1] NA NA NA  3  4  5