fill {tidyr} | R Documentation |
Fills missing values in using the previous entry. This is useful in the common output format where values are not repeated, they're recorded each time they change.
fill(data, ..., .direction = c("down", "up"))
data |
A data frame. |
... |
Specification of columns to fill. Use bare variable names.
Select all variables between x and z with |
.direction |
Direction in which to fill missing values. Currently either "down" (the default) or "up". |
Missing values are replaced in atomic vectors; NULL
s are replaced
in list.
fill_
for a version that uses regular evaluation
and is suitable for programming with.
df <- data.frame(Month = 1:12, Year = c(2000, rep(NA, 11))) df %>% fill(Year)