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# scipy.linalg.interpolative.estimate_rank

`scipy.linalg.interpolative.``estimate_rank`(A, eps)

  Estimate matrix rank to a specified relative precision using randomized methods.

  The matrix A can be given as either a `numpy.ndarray` or a `scipy.sparse.linalg.LinearOperator`, with different algorithms used for each case. If A is of type `numpy.ndarray`, then the output rank is typically about 8 higher than the actual numerical rank.

  Parameters: | A : `numpy.ndarray` or `scipy.sparse.linalg.LinearOperator` Matrix whose rank is to be estimated, given as either a `numpy.ndarray` or a `scipy.sparse.linalg.LinearOperator` with the rmatvec method (to apply the matrix adjoint). eps : float Relative error for numerical rank definition.
  Returns: | int Estimated matrix rank.