Given a data frame containing multiple surveys (one row per survey), transforms the data into long format with one row per party.
collapse_parties(
surveys,
parties = c("cdu", "spd", "greens", "fdp", "left", "pirates", "fw", "afd", "bsw",
"others")
)Data frame in long format
# \donttest{
emnid <- scrape_wahlrecht()
emnid.long <- collapse_parties(emnid)
# }