Takes the output from a checkbox question in a gorilla questionnaire (QB1, long format) and converts it so that there is one column for each checkbox option, scored 1 if it was ticked and 0 if it was not.
Arguments
- data
The list of data from a gorilla import, or just the questionnaire data (
data_q).- checkkey
The key that was used for this item in the gorilla questionnaire. Columns whose names contain this text are used (but those with "_text" in the name are ignored).
- newcolnames
Optional vector of names for the new columns, one for each checkbox option. If
NULL, the names are made from the text of the option.