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##' Get basic data on all cities
##'
##' This function is essentially a wrapper around Local.getCities().
##' @usage getAllCities()
##' @return A data frame with a row for each city and columns with the following variables describing the city:\cr cities.city*.localId,\cr cities.city*.name,\cr cities.city*.url.
##' @references http://api.votesmart.org/docs/Local.html\cr
##' Use State.getStateIDs() to get a list of state IDs.
##' @author Ulrich Matter <ulrich.matter-at-unibas.ch>
##' @examples
##' # First, make sure your personal PVS API key is saved as character string in the pvs.key variable:
##' \dontrun{pvs.key <- "yourkey"}
##' # get a list of all cities
##' \dontrun{cities <- getAllCities()}
##' \dontrun{head(cities)}
##' @export
getAllCities <-
function() {
states <- State.getStateIDs()
nocounties <- c("NA", "PR", "GU", "AS", "VI", "DC")
states <- states[!(states$stateId %in% nocounties),]
Local.getCities(states$stateId)
}
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