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std::discrete_distribution::probabilities

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C++
 
Numerik-Bibliothek
Gemeinsame mathematischen Funktionen
Floating-Point-Umgebung
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iota(C++11)
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Engines and engine adaptors
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linear_congruential_engine(C++11)
mersenne_twister_engine(C++11)
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random_device(C++11)
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Distributions
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Uniform distributions
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Bernoulli distributions
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bernoulli_distribution(C++11)
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poisson_distribution(C++11)
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discrete_distribution(C++11)
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std::discrete_distribution
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discrete_distribution::probabilities
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std::vector<double> probabilities() const;
 (seit C++11)
Ruft ein std::vector<double> mit den einzelnen Wahrscheinlichkeiten der einzelnen Zahl, die von dieser Verteilung erzeugt wird .
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Obtains a std::vector<double> containing the individual probabilities of each integer that is generated by this distribution.
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[Bearbeiten] Parameter

(None)
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(none)
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[Bearbeiten] Rückgabewert

Ein Objekt vom Typ std::vector<double>
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An object of type std::vector<double>
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[Bearbeiten] Beispiel

#include <iostream>
#include <vector>
#include <random>
int main()
{
    std::discrete_distribution<> d({40, 10, 10, 40});
    std::vector<double> p = d.probabilities();
    for(auto n : p)
        std::cout << n << ' ';
    std::cout << '\n';
}

Output: 

0.4 0.1 0.1 0.4
Von „https://de.cppreference.com/mwiki/index.php?title=cpp/numeric/random/discrete_distribution/probabilities&oldid=29803“