spey.backends.distributions.MainModel#
- class spey.backends.distributions.MainModel(loc: Callable[[ndarray], ndarray])[source]#
Main statistical model, modelled as Poisson distribution which has a variable lambda.
- Parameters:
loc (
Callable[[np.ndarray], np.ndarray]) – callable function that represents lambda values of poisson distribution. It takes nuisance parameters as input.
Methods
__init__(loc)expected_data(pars)The expectation value of the main model.
log_prob(pars, data)Compute log-probability
sample(pars, sample_size)Generate samples