egttools.numerical.numerical_.sample_simplex_directly

sample_simplex_directly()

Samples a discrete population state uniformly at random from the simplex.

This method uses a direct sampling approach to draw a single composition of strategies such that the total population size is preserved.

Parameters:

• nb_strategies (int) – Number of available strategies.

• pop_size (int) – Total number of individuals in the population.

Returns:

A vector of length nb_strategies, where each entry indicates how many individuals adopt the corresponding strategy.

Return type:

NDArray[np.int64]

See also

egttools.calculate_state, egttools.calculate_nb_states, egttools.sample_simplex

Examples

>>> sample_simplex_directly(3, 10)
array([3, 4, 3])

>>> sample_simplex_directly(2, 5)
array([2, 3])