class_docstr: Anova results class
  
  Attributes
  ----------
  anova_table : DataFrame
class_docstr_tok: ["Anova","results","class","Attributes","--","--","--","--","--","anova_table",":","DataFrame"]
code: def __str__(self):
      return self.summary().__str__()
  
imports: from statsmodels.compat.python import lrange
  import numpy
  import pandas
  from pandas import DataFrame, Index
  import patsy
  from scipy import stats
  from statsmodels.formula.formulatools import _has_intercept, _intercept_idx, _remove_intercept_patsy
  from statsmodels.iolib import summary2
  from statsmodels.regression.linear_model import OLS
label_desc: Use image node_id 2 for calling the AnovaResults obj's underlying member method code with example usage: obj.__str__() and returns: self