mirror of
https://github.com/triqs/dft_tools
synced 2024-12-26 14:23:38 +01:00
73 lines
2.1 KiB
C++
73 lines
2.1 KiB
C++
#include <triqs/arrays.hpp>
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#include <triqs/statistics.hpp>
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#include "./correlated_gaussian.hpp"
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#include <iostream>
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#include <ctime>
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#define TEST(X) std::cout << BOOST_PP_STRINGIZE((X)) << " ---> "<< (X) <<std::endl<<std::endl;
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using namespace triqs::statistics;
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void test_0(){
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//very simple test to test that everything works
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observable<double> X;
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X<<1.0;
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X<<-1.0;
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X<<.5;
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X<<.0;
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std::cout << average_and_error(X) << std::endl;
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std::cout << average_and_error(X*X) << std::endl;
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}
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void test_1(int argc, char ** argv){
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int N=100000, L=100;
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if(argc==3){
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N = atoi(argv[1]); //size
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L = atoi(argv[2]); //autocorrelation time
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}
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std::cout << "N = " << N << std::endl;
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std::cout << "L = " << L << std::endl;
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int seed= 1567;
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std::vector<double> A(N);
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correlated_gaussian_vector(A, seed, L);
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double intrinsic_variance = 1;
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auto t1 = clock();
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TEST( autocorrelation_time(A));
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//std::cout << "time = " << double( clock()-t1)/CLOCKS_PER_SEC << std::endl;
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//t1 = clock();
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TEST( autocorrelation_time_from_binning(A,intrinsic_variance));
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TEST( autocorrelation_time_from_binning(A));
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//std::cout << "time = " << double( clock()-t1)/CLOCKS_PER_SEC << std::endl;
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//t1 = clock();
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//TEST( autocorrelation_time_from_binning2(A));
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//std::cout << "time = " << double( clock()-t1)/CLOCKS_PER_SEC << std::endl;
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}
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void test_2(int argc, char ** argv){
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int N=100000, L=40;
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if(argc==3){
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N = atoi(argv[1]); //size
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L = atoi(argv[2]); //autocorrelation time
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}
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int seed= 1567;
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double avg = 2;
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std::vector<double> A(N);
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correlated_gaussian_vector(A, seed, L, avg);
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observable<double> V;
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for (auto & x:A) V << x;
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TEST(autocorrelation_time(V));
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TEST(autocorrelation_time_from_binning(V));
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//TEST(autocorrelation_time_from_binning2(V));
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TEST(autocorrelation_time(V*V));
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}
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int main(int argc, char ** argv){
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try{ test_0(); } catch(std::exception const & e){ std::cerr << e.what() << std::endl;}
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try{ test_1(argc,argv); } catch(std::exception const & e){ std::cerr << e.what() << std::endl;}
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try{ test_2(argc,argv); } catch(std::exception const & e){ std::cerr << e.what() << std::endl;}
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}
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