public static void writeLabeledHistogram(TObjectDoubleHashMap<String> map,String keyCol,String valCol,String file) throws IOException {
  writeLabeledHistogram(map,keyCol,valCol,file,false);
}

public static void writeLabeledHistogram ( TObjectDoubleHashMap < String > map , String keyCol , String valCol , String file ) throws IOException { writeLabeledHistogram ( map , keyCol , valCol , file , false ) ; }
writes a plain text file with two columns where the first column contains the map keys and second the map values . rows are sorted by the natural order of the map keys .
