##' Get votes listed by candidate on a certain bill action
##'
##' This function is a wrapper for the Votes.getBillActionVotes() method of the PVS API Votes class which provides votes listed by candidate on a certain bill action. The function sends a request with this method to the PVS API for all action IDs given as a function input, extracts the XML values from the returned XML file(s) and returns them arranged in one data frame.
##' @usage Votes.getBillActionVotes(actionId)
##' @param actionId a character string or list of character strings with the action ID(s) (see references for details)
##' @return A data frame with a row for each vote and columns with the following variables describing the vote:\cr votes.vote*.candidateId,\cr votes.vote*.candidateName,\cr votes.vote*.officeParties,\cr votes.vote*.action.
##' @references http://api.votesmart.org/docs/Votes.html\cr
##' Use Votes.getBill() or Votes.getByOfficial() to get a list of action IDs.
##' @author Ulrich Matter <ulrich.matter-at-unibas.ch>
##' @examples
##' # First, make sure your personal PVS API key is saved as an option
##' # (options("pvs.key" = "yourkey")) or in the pvs.key variable:
##' \dontrun{pvs.key <- "yourkey"}
##' # get votes of a certain candidate on a certain action
##' \dontrun{actionvote <- Votes.getBillActionVotes(list(31712,28686))}
##' \dontrun{actionvote}
##' @export
Votes.getBillActionVotes <-
function (actionId) {
# internal function
Votes.getBillActionVotes.basic <-
function (.actionId) {
request <- "Votes.getBillActionVotes?"
inputs <- paste("&actionId=",.actionId, sep="")
output <- pvsRequest(request,inputs)
output$actionId <- .actionId
return(output)
}
# Main function
output.list <- lapply(actionId, FUN= function (b) {
Votes.getBillActionVotes.basic(.actionId=b)
}
)
output.list <- redlist(output.list)
output <- bind_rows(output.list)
return(output)
}
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