class_docstr: collection of descriptive statistical methods for time series
  
      
class_docstr_tok: ["collection","of","descriptive","statistical","methods","for","time","series"]
code: def fit(self, order=(1, 0, 1), **kwds):
      from .arima_model import ARMA
  
      self.mod = ARMA(self.data)
      self.res = self.mod.fit(order=order, **kwds)
      # self.estimated_process =
      return self.res
  
file_path: statsmodels/statsmodels/tsa/descriptivestats.py
imports: import numpy
  from .None import stattools
label_desc: Use image node_id 4 for calling the TsaDescriptive obj's underlying member method code with example usage: obj.fit(order) and returns: self