cvpa_cache_dir          Local cache directory used by cvpa
cvpa_example_url        URL of the small example dataset bundled with
                        cvpa
cvpa_grouping_vars      Grouping variables available for any question
demographic_vars        Demographic variables available on every
                        question's response data
gap_analysis            Analyze Significance of Voting Gaps
make_flag               Make Reliability Flag for Weighted Proportions
                        Test
question_catalog        List available policy and vote questions
question_data           Fetch and decode one question's
                        respondent-level data
question_response_labels
                        Response category labels for one question
response_gap_analysis   Analyze Significance of Response Gaps for any
                        question
update_cvpa_data        Download or refresh cvpa's local cache of the
                        cp3 policy-attitude data
vote_data               Vote Choice/Intention Data
wtd_response            Weighted proportion of each response category,
                        by year and group
wtd_vote                Make weighted mean of vote intention/choice
