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template<typename _MatrixType>
Index ColPivHouseholderQR< _MatrixType >::dimensionOfKernel (  ) const [inline]
the dimension of the kernel of the matrix of which *this is the QR decomposition.
This method has to determine which pivots should be considered nonzero. For that, it uses the threshold value that you can control by calling setThreshold(const RealScalar&).

Definition at line 211 of file ColPivHouseholderQR.h.

References ColPivHouseholderQR< _MatrixType >::rank().

      eigen_assert(m_isInitialized && "ColPivHouseholderQR is not initialized.");
      return cols() - rank();

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