Struct BoltzmannHMCWalk::Walk::Settings

struct Settings

A struct containing the parameters for the random walk.

Public Functions

template<typename Point>
inline Settings(const int walkLength, const RandomNumberGenerator &randomNumberGenerator, const Point &c, const NT temperature, const NT diameter, unsigned int reflectionsBound = 2000, NT stepScale = NT(1.0))

Constructs an object of Settings

Parameters:

  • walkLength – [in] The number of points to “burn” before keeping the following as a sample

  • randomNumberGenerator – [in] For generating random numbers

  • c – [in] The c in the distribution e^(-c*x/T)

  • temperature – [in] The T in the distribution

  • diameter – [in] The diameter of the convex body

  • reflectionsBound – [in] Maximum number of reflections allowed per step

  • stepScale – [in] Initial step size scaling factor (default 1.0)

Returns:

An instance of this struct

inline Settings()

Public Members

int walk_length

The number of points to “burn” before keeping the following as a sample.

RandomNumberGenerator randomNumberGenerator

For generating random numbers.

VT c

The c in the Boltzmann distribution e^(-c*x/T)

NT temperature

The temperature T in the distribution.

NT diameter

The diameter of the convex body.

unsigned int reflectionsBound

Set the maximum number of allowed reflections at each step.

NT initial_step_scale

Initial step size scale factor (will be adapted during sampling)