use_data_table() imports the data.table() function from the data.table
package, as well as several important symbols: :=, .SD, .BY, .N,
.I, .GRP, .NGRP, .EACHI. This is a minimal setup to get data.tables
working with your package. See the importing data.table
vignette for other strategies. In addition to importing these function,
use_data_table() also blocks the usage of data.table in the Depends field
of the DESCRIPTION file; data.table should be used as an imported or
suggested package only. See this
discussion.
use_data_table()