In zdaarau/fokus: Provides an API around the FOKUS Post-voting Surveys

Merged data

Merged datasets differ from single-ballot-date datasets in two ways:

Column labels (the label attribute) are ballot-date-independent, i.e. do not include proposal or election names, and in case of question rewordings over time, the very latest question wording of all FOKUS surveys in that canton is used (which might have been introduced only after ballot_date). So be aware that the questions in the labels do not necessarily correspond to the actual questions asked in the FOKUS survey for ballot_date.
Variables whose factor levels vary across ballot dates, such as those capturing skill questions, are converted to type character. Be aware that these variables usually aren't really comparable over time.