Difference between revisions of "cpp/numeric/random/discrete distribution/probabilities"
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{{cpp/numeric/random/discrete_distribution/title | probabilities}} | {{cpp/numeric/random/discrete_distribution/title | probabilities}} | ||
| − | {{cpp/numeric/random/discrete_distribution/ | + | {{cpp/numeric/random/discrete_distribution/}} |
| − | {{ | + | {{begin}} |
| − | {{ | + | {{|=c++11|1= |
std::vector<double> probabilities() const; | std::vector<double> probabilities() const; | ||
}} | }} | ||
| − | {{ | + | {{end}} |
| − | Obtains a {{ | + | Obtains a {{|std::vector<double>}} containing the individual probabilities of each integer that is generated by this distribution. |
===Parameters=== | ===Parameters=== | ||
| Line 13: | Line 13: | ||
===Return value=== | ===Return value=== | ||
| − | An object of type {{ | + | An object of type {{|std::vector<double>}} |
===Example=== | ===Example=== | ||
| − | {{example | + | {{example |
| − | + | |code= | |
#include <iostream> | #include <iostream> | ||
| − | |||
#include <random> | #include <random> | ||
| + | |||
| + | |||
int main() | int main() | ||
{ | { | ||
std::discrete_distribution<> d({40, 10, 10, 40}); | std::discrete_distribution<> d({40, 10, 10, 40}); | ||
std::vector<double> p = d.probabilities(); | std::vector<double> p = d.probabilities(); | ||
| − | for(auto n : p) | + | for (auto n : p) |
std::cout << n << ' '; | std::cout << n << ' '; | ||
std::cout << '\n'; | std::cout << '\n'; | ||
} | } | ||
| − | + | |output= | |
0.4 0.1 0.1 0.4 | 0.4 0.1 0.1 0.4 | ||
}} | }} | ||
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| + | |||
Latest revision as of 07:44, 30 April 2023
| std::vector<double> probabilities() const; |
(since C++11) | |
Obtains a std::vector<double> containing the individual probabilities of each integer that is generated by this distribution.
[edit] Parameters
(none)
[edit] Return value
An object of type std::vector<double>.
[edit] Example
Run this code
#include <iostream> #include <random> #include <vector> 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
