PowerSpectrum_Angular.h

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/********************************************************************
 *  Copyright (C) 2010 by Federico Marulli                          *
 *  federico.marulli3@unibo.it                                      *
 *                                                                  *
 *  This program is free software; you can redistribute it and/or   *
 *  modify it under the terms of the GNU General Public License as  *
 *  published by the Free Software Foundation; either version 2 of  * 
 *  the License, or (at your option) any later version.             *
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 *  This program is distributed in the hope that it will be useful, *
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of  *
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the   *
 *  GNU General Public License for more details.                    *
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 *  You should have received a copy of the GNU General Public       *
 *  License along with this program; if not, write to the Free      *
 *  Software Foundation, Inc.,                                      *
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#ifndef __POWSPECTRUMANG__
#define __POWSPECTRUMANG__
 
#include "TwoPointCorrelation1D_angular.h"
 
 
// ===================================================================================================
 
 
namespace cbl {   
  
  namespace measure {
 
    namespace angularpk {
      
      void read_mixing_matrix (const std::string dir, const std::string file, std::vector<double> &ll, std::vector<std::vector<double>> &matrix);
       
      enum class AngularEstimator {
 
    _Fast_,
 
    _SphericalArmonic_
 
      };
      
      class PowerSpectrum_angular : public Measure {
    
      private:
    
    std::vector<double> m_theta;
    
    std::vector<double> m_w;
    
    std::vector<double> m_w_err;
 
    std::vector<double> m_x;
    
    std::vector<double> m_y;
    
    std::vector<double> m_y_err;
    
    std::vector<double> m_l;
 
    std::vector<double> m_AngularPowerSpectrum;
    
    std::vector<double> m_l_av;
 
    std::vector<double> m_AngularPowerSpectrum_av;
    
    double m_l_min;
    
    double m_l_max;
 
    double m_Nl;
    
    double m_nbins;
 
    std::vector<double> m_Wl;
 
    std::vector<std::vector<double>> m_RR;
    
    std::string m_dir_correlation_input;
    
    std::string m_file_correlation_input;
    
    int m_n_lines_header;
    
    cbl::CoordinateUnits m_inputUnits;
    
    std::string m_dir_correlation_output;
    
    std::string m_file_correlation_output;
    
    cbl::CoordinateUnits m_angularUnits;
    
    cbl::BinType m_binType;
    
    std::shared_ptr<twopt::TwoPointCorrelation1D_angular> m_TwoPointCorrelation1D_angular;
 
    std::shared_ptr<catalogue::Catalogue> m_catalogue;
 
    std::vector<double> m_theta_mask;
 
    std::vector<double> m_theta_mask_min;
    
    std::vector<double> m_theta_mask_max;
    
    std::vector<double> m_RA_mask;
    
    std::vector<double> m_RA_mask_min;
    
    std::vector<double> m_RA_mask_max;
 
    double m_pixel_area;
    
    double m_survey_area;
    
    void m_convert_angular_units (cbl::CoordinateUnits inputUnits);
    
    double m_dtheta_theta (const BinType binType, int i);
    
    std::vector<double> m_error (const BinType binType, std::vector<double> w_err);
 
    void set_catalogue (cbl::catalogue::Catalogue catalogue);
 
 
    void m_averagePowerSpectrum ();
 
    
    void m_read_angular_mask (const std::string mask_file, std::string mask_type, double pixel_area, int n_lines_header=1);
    
      public:
    
    
    PowerSpectrum_angular () = default;
    
    PowerSpectrum_angular (const catalogue::Catalogue data, const catalogue::Catalogue random, const double l_min, const double l_max, const int Nl, const BinType binType, const double thetaMin, const double thetaMax, const int nbins, const double shift, const CoordinateUnits angularUnits, const BinType correlation_binType);   
    
    PowerSpectrum_angular (const catalogue::Catalogue data, const double l_min, const double l_max, const int bandwidth=1, const std::string mask_file="", const std::string mask_type="", const double pixel_area=0, const int n_lines_header=1);   
    
    
    ~PowerSpectrum_angular () = default;
    
    
    void set_l_output (const BinType binType);
    
    void measure (const AngularEstimator estimator=AngularEstimator::_Fast_, const std::string dir_correlation_input="", const std::string file_correlation_input="", const int n_lines_header=1, CoordinateUnits inputUnits=CoordinateUnits::_arcminutes_, BinType input_binType=BinType::_logarithmic_, cbl::measure::ErrorType errorType=ErrorType::_Poisson_, const std::string dir_correlation_output= par::defaultString, const std::string file_correlation_output="xi_angular.dat", const int nMocks=0);
 
    void measureFast (const std::string dir_correlation_input="", const std::string file_correlation_input="", const int n_lines_header=1, CoordinateUnits inputUnits=CoordinateUnits::_arcminutes_, BinType input_binType=BinType::_logarithmic_, cbl::measure::ErrorType errorType=ErrorType::_Poisson_, const std::string dir_correlation_output= par::defaultString, const std::string file_correlation_output="xi_angular.dat", const int nMocks=0);
 
    void measureSphericalArmonic ();
    
    std::vector<double> theta () { return m_theta; }
 
    std::vector<double> Wl () { return m_Wl; }
 
    std::vector<double> AngularPowerSpectrum () { return m_AngularPowerSpectrum; }
    
    std::vector<double> l () { return m_l; }
    
    void compute_mixing_matrix(std::string dir_window_input="", std::string file_window_input="");
 
    double angular_mask(double theta, double RA);
 
    
    void write (const std::string dir, const std::string file);
 
    void write_average (const std::string dir, const std::string file);
    
    void write_mixing_matrix (const std::string dir, const std::string file,  bool store_window=false);
 
      void read (const std::string dir, const std::string file, const std::vector<int> column_x={1}, const std::vector<int> column_y={2}, const std::vector<int> column_error={3}, const int n_lines_header=1);
    
    
      };
    }
  }
}
 
#endif