Determines the channels the surevy was conducted over.
Usage
survey_channels(
ballot_date = pal::pkg_config_val("ballot_date"),
canton = cantons(ballot_date)
)
See also
Other fundamental predicate functions:
ballot_types()
,
cantons()
,
combos_ballot_types()
,
election_nrs()
,
election_prcds()
,
has_ballot_type()
,
has_election()
,
has_election_nrs()
,
has_lvl()
,
has_proposal_nrs()
,
has_referendum()
,
is_representative()
,
lvls()
,
n_elections()
,
n_proposals()
,
prcds()
,
proposal_nrs()
,
proposal_qstn_groups()
,
qstn_groups_proposal_nrs()