Method getFlattenedDDF

core/src/main/java/io/ddf/DDF.java:425–427

(String[] columns)

  public DDF getFlattenedDDF(String[] columns) throws DDFException {
    return this.getTransformationHandler().flattenDDF(columns);
  }
  public DDF getFlattenedDDF() throws DDFException {
    return this.getTransformationHandler().flattenDDF();
  }