KM3NETDAQ::JRandomTimeslice::random_indices_t Struct Reference

Auxiliary data structure for randomisation of indices. More...

#include <JRandomTimeslice.hh>

Inheritance diagram for KM3NETDAQ::JRandomTimeslice::random_indices_t:

Public Member Functions
	random_indices_t (const size_t N)
	Constructor. More...
void	random_shuffle (const std::set< size_t > &keep)
	Randomly shuffle values between fixed indices. More...

Private Member Functions
void	random_shuffle (const int i1, const int i2)
	Randomly shuffle values between given indices. More...

Detailed Description

Auxiliary data structure for randomisation of indices.

Definition at line 166 of file JRandomTimeslice.hh.

Constructor & Destructor Documentation

random_indices_t()

KM3NETDAQ::JRandomTimeslice::random_indices_t::random_indices_t ( const size_t  N )

inline

Constructor.

Parameters

N	number of indices

Definition at line 174 of file JRandomTimeslice.hh.

                                       :
        std::vector<size_t>(N)
      {}

Member Function Documentation

random_shuffle() [1/2]

void KM3NETDAQ::JRandomTimeslice::random_indices_t::random_shuffle ( const std::set< size_t > &  keep )

inline

Randomly shuffle values between fixed indices.

Parameters

keep	fixed indices

Definition at line 183 of file JRandomTimeslice.hh.

      {
        for (size_t i = 0; i != this->size(); ++i) {
          (*this)[i] = i;
        }
 
        size_t i1 = 0;
 
        for (const size_t i2 : keep) {
 
          random_shuffle(i1, i2);
            
          i1 = i2 + 1;
        }
          
        random_shuffle(i1, this->size());
      }

random_shuffle() [2/2]

void KM3NETDAQ::JRandomTimeslice::random_indices_t::random_shuffle ( const int  i1, const int  i2  )

inlineprivate

Randomly shuffle values between given indices.

Parameters

i1	first index (included)
i2	last index (excluded)

Definition at line 208 of file JRandomTimeslice.hh.

      {
        for (int i = i2 - 1; i > i1; --i) {
 
          const int l = i1 + gRandom->Integer(i - i1);
 
          std::swap((*this)[i], (*this)[l]);
        }
      }

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The documentation for this struct was generated from the following file:

• JRandomTimeslice.hh