class_docstr: Accessor to ``sklearn.covariance``.
class_docstr_tok: ["Accessor","to","``","sklearn.covariance","``","."]
docstr: Call ``sklearn.covariance.oas`` using automatic mapping.
  
  - ``X``: ``ModelFrame.data``
docstr_tok: ["Call","``","sklearn.covariance.oas","``","using","automatic","mapping",".","-","``","X","``",":","``","ModelFrame.data","``"]
code: def oas(self, *args, **kwargs):
      """
      Call ``sklearn.covariance.oas`` using automatic mapping.
  
      - ``X``: ``ModelFrame.data``
      """
      func = self._module.oas
      data = self._data
      shrunk_cov, shrinkage = func(data.values, *args, **kwargs)
      shrunk_cov = self._constructor(
          shrunk_cov, index=data.columns, columns=data.columns
      )
      return shrunk_cov, shrinkage
  
imports: from pandas_ml.core.accessor import _AccessorMethods
label_desc: Use image node_id 3 for calling the CovarianceMethods obj's underlying member method code with example usage: obj.oas() and returns: shrunk_cov,  shrinkage