This function matches the values of a variable with an index and returns the specified IDs.
matchVars(input = NULL, source = NULL, ...)[character(.)] table in which to match variables.
[integerish(1)] the census ID (cenID) from
which the terms have been taken.
[list(1)] lists that capture the variables by which to
match and the new column names containing the resulting ID; see Details.
The table provided in input, where the given variable is
replaced by the column that is specified by the argument name.
Arguments in ... are named lists that indicate with which
target column variables shall be matched and which value should be used as
target ID.
targetID = list(variable = targetColumn)
The variable must be present as column in input and a table that is
named "id_VARIABLE.csv" must be available in the root directory of the
project. This should have been created with setVariables.