CppRNG: Random Number Generator C++ Wrapper

In stochtree: Stochastic Tree Ensembles (XBART and BART) for Supervised Learning and Causal Inference

Random Number Generator C++ Wrapper

Description

Wrapper around a C++ random number generator object (for reproducibility). The class persists a C++ random number generator throughout an R session to ensure a given seed generates the same outputs (on the same OS). If no seed is provided, the C++ random number generator is initialized using std::random_device.

Public fields

rng_ptr

External pointer to a C++ std::mt19937 class

Methods

Public methods

• CppRNG$new()

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Method new()

Create a new CppRNG object.

Usage

CppRNG$new(random_seed = -1)

Arguments

random_seed

(Optional) random seed for sampling

Returns

A new CppRNG object.

stochtree documentation built on April 29, 2026, 1:08 a.m.