Method sparseView

include/Eigen/src/SparseCore/SparseView.h:201–204

 * \sa SparseMatrixBase::pruned(), class SparseView */
template <typename Derived>
const SparseView<Derived> MatrixBase<Derived>::sparseView(const Scalar& reference,
                                                          const typename NumTraits<Scalar>::Real& epsilon) const {
  return SparseView<Derived>(derived(), reference, epsilon);
}

/** \returns an expression of \c *this with values smaller than
 * \a reference * \a epsilon removed.