littlemcmc.QuadPotentialFullInv

class littlemcmc.QuadPotentialFullInv(A, dtype=None)

QuadPotential object for Hamiltonian calculations using inverse of covariance matrix.

__init__(A, dtype=None)

Compute the lower cholesky decomposition of the potential.

Parameters:

A : matrix, ndim = 2

Inverse of covariance matrix for the potential vector

Methods

__init__(A[, dtype])	Compute the lower cholesky decomposition of the potential.
energy(x[, velocity])	Compute kinetic energy at a position in parameter space.
raise_ok([vmap])	Check if the mass matrix is ok, and raise ValueError if not.
random()	Draw random value from QuadPotential.
reset()	Reset quadpotential adaptation routine.
update(sample, grad, tune)	Inform the potential about a new sample during tuning.
velocity(x[, out])	Compute the current velocity at a position in parameter space.
velocity_energy(x, v_out)	Compute velocity and return kinetic energy at a position in parameter space.