Step 5 - recode raw values using the recode_map

For each variable with a recode: block in the YAML, builds a lookup vector and replaces matching cell values. Recoding runs on the string representation of the column so it is independent of the column's current type - this matters because type coercion happens in step 7.

Usage

.apply_recodes(dt, config, cols)

Arguments

dt

A data.table (modified by reference).

config

Config object from load_config().

cols

Character vector of column names to process.

Value

dt invisibly.