Kmeans.hh

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/*
 * Copyright (C) 2014 Open Source Robotics Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
*/
#ifndef GZ_MATH_KMEANS_HH_
#define GZ_MATH_KMEANS_HH_
 
#include <vector>
#include <gz/math/Vector3.hh>
#include <gz/math/Helpers.hh>
#include <gz/math/config.hh>
 
#include <gz/utils/ImplPtr.hh>
 
namespace gz::math
{
  // Inline bracket to help doxygen filtering.
  inline namespace GZ_MATH_VERSION_NAMESPACE {
 
  class GZ_MATH_VISIBLE Kmeans
  {
    public: explicit Kmeans(const std::vector<Vector3d> &_obs);
 
    public: std::vector<Vector3d> Observations() const;
 
    public: bool Observations(const std::vector<Vector3d> &_obs);
 
    public: bool AppendObservations(const std::vector<Vector3d> &_obs);
 
    public: bool Cluster(int _k,
                         std::vector<Vector3d> &_centroids,
                         std::vector<unsigned int> &_labels);
 
    private: unsigned int ClosestCentroid(const Vector3d &_p) const;
 
    GZ_UTILS_IMPL_PTR(dataPtr)
  };
  }  // namespace GZ_MATH_VERSION_NAMESPACE
}  // namespace gz::math
#endif  // GZ_MATH_KMEANS_HH_