example_ra_indices.cpp

 
#include <Pds/Ra>
#include <ctime>
 
int main(void)
{
    Pds::Matrix A(5,5);
    A.FillId();
    A.Print("\nA:\n");
 
    std::srand(std::time(0));
    
    // Getting index vector
    std::vector<unsigned int> Vec=Pds::Ra::IndicesRandVector(0,4,3);
        
    std::cout<<std::endl;
    for (auto pmat = Vec.begin(); pmat != Vec.end(); pmat++) 
        std::cout<<*pmat<<"\t";
    std::cout<<std::endl;
    
    // Getting index list
    std::list<unsigned int> List=Pds::Ra::IndicesRandList(0,4,3);
        
    std::cout<<std::endl;
    for (auto pmat = List.begin(); pmat != List.end(); pmat++) 
        std::cout<<*pmat<<"\t";
    std::cout<<std::endl;
 
    // Getting rows from matrix and index list
    Pds::Matrix B=A.GetRows(List);
    B.Print("\nA.GetRows(List):\n");
 
    // Getting columns from matrix and index list
    B=A.GetCols(List);
    B.Print("\nA.GetCols(List):\n");
    
    //             0 1 2 3 4 5 6 7 8 9 10 11 12 13
    Pds::Vector V="1 0 1 1 1 0 0 0 1 0 1  1  0  0";
    V.Print("\nV:\n");
    std::vector<unsigned int> ID;
    ID=Pds::Ra::IndicesRandVector(V,0.5,8);
    std::cout<<Pds::Ra::IndicesToString(ID,",")<<std::endl;
 
    return 0;
}