Joins two data.tables based on keys

Description

This function joins two data.table objects, given a common key, which can have different names in the two tables. In the latter case, the sequence of the names is crucial. Make sure that the key columns match exactly.

Usage

1
joinDataTables(dt_1, dt_2, key_1, key_2 = key_1)

Arguments

dt_1

first data.table

dt_2

second data.table

key_1

character vector of key columns for first data.table

key_2

character vector of key columns for second data.table

Value

joined data.table

Author(s)

Matthias Bannert, Gabriel Bucur