code: public static DataRowsFacade normalize(DataRowsFacade dataFrame, double min, double max) {
          return normalize(dataFrame, min, max, Collections.<String>emptyList());
      }
docs: Scale based on min,max
  
  @param dataFrame the dataframe to scale
  @param min       the minimum value
  @param max       the maximum value
  @return the normalized dataframe per column