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.
...
A selection of columns. If empty, all variables are
selected. You can supply bare variable names, select all
variables between x and z with x:z, exclude y with -y. For
more options, see the dplyr::select() documentation. See also
the section on selection rules below.
.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.