A helper function for looking up one variable name in a list of datasets.
Looking up the name of several variables in a list of datasets.
Usage
whichds(columnName = NULL, ...)
which_ds(columnName = NULL, ...)
Arguments
- columnName
a character vector of name of variables of interest.
- ...
a comma separated list of datasets
- dss
is a list of all datasets where variable names will be searched for.
Value
is a named, logical array that determines which dataset includes
variables listed in columnName.