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.
Usage
fill(data, ..., .direction = c("down", "up"))
Arguments
data
A data frame.
...
Specification of columns to fill. Use bare variable names.
Select all variables between x and z with x:z, exclude y with
-y. For more options, see the select documentation.
.direction
Direction in which to fill missing values. Currently
either "down" (the default) or "up".
Details
Missing values are replaced in atomic vectors; NULLs are replaced
in list.
See Also
fill_ for a version that uses regular evaluation
and is suitable for programming with.