studies_drop_na: Drop any NA studies.
Description
This function takes a studies S4 object and removes any study identifiers
that might have been NA. This ensures that there is always a non-NA
study_id
value in all tables. This is important as the study_id
is the primary key.
Usage
studies_drop_na(s4_studies)
Value
An object of class studies.
Arguments
- s4_studies
An object of class studies.