R/w.R

In easyr: Helpful Functions from Oliver Wyman Actuarial Consulting

#' Write
#'
#' Improved write function. Writes to csv without row names and automatically adds .csv to the file name if it isn't there already. Changes to .csv if another extension is passed.
#' Easier to type than write.csv(row.names=F).
#' Author: Bryce Chamberlain. Tech reveiw: Maria Gonzalez.
#'
#' @param x Data frame to write to file.
#' @param filename (Optional) Filename to use.
#' @param row.names (Optional) Specify if you want to include row names/numbers in the output file.
#' @param na (Optional) String to print for NAs. Defaults to an empty/blank string.
#'
#' @export
#'
#' @examples
#' # write the cars dataset.
#' path = paste0( tempdir(), '/out.csv' )
#' w( cars, path )
#' 
#' # cleanup.
#' file.remove( path )
w <- function( x, filename = 'out', row.names = FALSE, na = '' ){
  
  filename <- paste0( gsub( '[.][a-z]+$','', filename, ignore.case = T ), '.csv' ) # force csv file type.
  
  utils::write.csv( x, filename, row.names = row.names, na = na )
  
}