Fills missing values in selected columns 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"))
A data frame.
A selection of columns. If empty, nothing happens. You can
supply bare variable names, select all variables between
-y. For more selection options, see the
Direction in which to fill missing values. Currently either "down" (the default) or "up".
Missing values are replaced in atomic vectors;
NULLs are replaced