Method prune

include/Eigen/src/SparseCore/SparseMatrix.h:631–633

Suppresses all nonzeros which are \b much \b smaller \b than \a reference under the tolerance \a epsilon */

  /** Suppresses all nonzeros which are \b much \b smaller \b than \a reference under the tolerance \a epsilon */
  void prune(const Scalar& reference, const RealScalar& epsilon = NumTraits<RealScalar>::dummy_precision()) {
    prune(default_prunning_func(reference, epsilon));
  }

  /** Turns the matrix into compressed format, and suppresses all nonzeros which do not satisfy the predicate \a keep.
   * The functor type \a KeepFunc must implement the following function: