Use a yspec object to convert a vector of column names to the short
name with the unit optionally appended.
ys_recode(col, spec, ..., unit = FALSE)A character vector of names in spec.
A yspec object.
Passed to ys_get_short() (when unit is FALSE) or
ys_get_short_unit() (when unit is TRUE); specifically note that
title_case and short_max can be passed along.
Logical indicating if the unit should be appended to the short name.