drop_sensitive drops the columns that give approximate location, IP
address, contact name, and contact email from a table of survey responses.
drop_meta also drops other standard columns that don't represent
keep_questions is most strict, keeping only the
columns for survey questions; it drops columns with embedded data, for
drop_sensitive(tbl) drop_meta(tbl) keep_questions(tbl, design_object)
A data.frame of survey responses.
The data.frame without the dropped columns.
The following metadata columns are dropped by
drop_sensitive, if they
exist in the table:
drop_meta drops those columns and any of the following: