text: /* Copyright 2001, 2019 IBM Corporation
   *
   * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the 
   * following conditions are met:
   *
   * 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the 
   * following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the 
   * following disclaimer in the documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 
   * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
   * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 
   * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
   // ********************************************************************
  // File: bmtcovariance.hpp
  // Author: RSG
  // Date: October 13, 2002
  // Namespace: bmt
  // Class: Covariance
  // Description: Class encapsulating the computation of the covariance matrix
  //              from a correlation matrix (like bmt::Correlation)
  // ********************************************************************
  
  #ifndef INCLUDE_BMT_BMTCOVARIANCE_HPP
  #define INCLUDE_BMT_BMTCOVARIANCE_HPP
  
  #include <BlueMatter/bmtlowerpackedsymmetricmatrix.hpp>
  
  namespace bmt
  {
    class Covariance
    {
    private:
      LowerPackedSymmetricMatrix* d_matrix_p; // symmetric matrix
    public:
      Covariance();
      ~Covariance();
      const LowerPackedSymmetricMatrix& operator()(const LowerPackedSymmetricMatrix&);
    };
  }
  
  #endif
  