@Test
public void testSomeMethod() {

    PreprocessingModel process = TramoSpecification.TRfull.build().process(Data.X, null);
    RegArimaModel<SarimaModel> regArima = process.estimation.getRegArima();
    DataBlock errors = OneStepAheadPredictionErrors.errors(regArima);
      System.out.println(errors);
    DataBlock cerrors = DataBlock.select(errors, x->Double.isFinite(x));
      System.out.println(cerrors);
    assertEquals(cerrors.ssq(), process.estimation.getStatistics().SsqErr, 1e-6);
}