xgboost
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Utility related to random. More...
#include <rabit/rabit.h>
#include <xgboost/logging.h>
#include <algorithm>
#include <functional>
#include <vector>
#include <limits>
#include <map>
#include <memory>
#include <numeric>
#include <random>
#include <utility>
#include "xgboost/host_device_vector.h"
#include "common.h"
Go to the source code of this file.
Classes | |
class | xgboost::common::ColumnSampler |
Handles selection of columns due to colsample_bytree, colsample_bylevel and colsample_bynode parameters. Should be initialised before tree construction and to reset when tree construction is completed. More... | |
Namespaces | |
xgboost | |
namespace of xgboost | |
xgboost::common | |
Typedefs | |
using | xgboost::common::RandomEngine = std::mt19937 |
Define mt19937 as default type Random Engine. More... | |
using | xgboost::common::GlobalRandomEngine = RandomEngine |
global random engine More... | |
Functions | |
GlobalRandomEngine & | xgboost::common::GlobalRandom () |
global singleton of a random engine. This random engine is thread-local and only visible to current thread. More... | |
template<typename T > | |
std::vector< T > | xgboost::common::WeightedSamplingWithoutReplacement (std::vector< T > const &array, std::vector< float > const &weights, size_t n) |
Utility related to random.
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