code: public static SimpleDataSet read(Path path, int lines_to_skip, Set<Integer> cat_cols) throws IOException
      {
          return read(path, DEFAULT_DELIMITER, lines_to_skip, DEFAULT_COMMENT, cat_cols);
      }
docs: Reads in the given CSV dataset as a simple CSV file
  @param path the CSV file
  @param lines_to_skip the number of lines to skip when reading in the CSV
  (used to skip header information)
  @param cat_cols a set of the indices to treat as categorical features.
  @return a simple dataset of the given CSV file
  @throws IOException