cma.fitness_transformations.IntegerMixedFunction2

class documentation

class IntegerMixedFunction2(ComposedFunction):

Constructor: IntegerMixedFunction2(function, integer_variable_indices, operator, copy)

compose fitness function with some integer variables using np.round by default.

>>> import numpy as np
>>> import cma
>>> f = cma.s.ft.IntegerMixedFunction2(cma.ff.elli, [0, 3, 5])
>>> assert f([-0.2, 2]) == f([0.4, 2]) != f([0.8, 2])
>>> f = cma.s.ft.IntegerMixedFunction2(cma.ff.elli, [0])
>>> assert f([-0.2, 2]) == f(np.array([0.4, 2])) != f(np.array([0.8, 2]))

Related: Option 'integer_variables' of cma.CMAOptions sets 'minstd' of integer variables, see cma.options_parameters.integer_std_lower_bound and rounds the better solutions, see cma.integer_centering.

Method	`__init__`	apply operator(x[i]) for i in integer_variable_indices before to call function(x).
Instance Variable	`copy`	Undocumented
Instance Variable	`integer_variable_indices`	Undocumented
Instance Variable	`operator`	Undocumented
Method	`_flatten`	Undocumented
Method	`_flatten2`	Undocumented

Inherited from ComposedFunction:

Method	`__call__`	Undocumented
Method	`inverse`	evaluate the composition of inverses on `x`.
Instance Variable	`list_of_inverses`	Undocumented

Inherited from Function (via ComposedFunction):

Method	`initialize`	initialization of `Function`
Instance Variable	`evaluations`	Undocumented
Instance Variable	`ftarget`	Undocumented
Instance Variable	`target_hit_at`	Undocumented
Property	`function_names_to_evaluate_first_found`	attributes which are searched for to be called if no function was given to `__init__`.
Class Variable	`_function_names_to_evaluate_first_found`	Undocumented
Instance Variable	`__callable`	Undocumented
Instance Variable	`__initialized`	Undocumented

def __init__(self, function, integer_variable_indices, operator=np.round, copy=True): ¶

overrides cma.fitness_transformations.ComposedFunction.__init__

apply operator(x[i]) for i in integer_variable_indices before to call function(x).

If copy, return a copy iff a value is changed.

copy = ¶

Undocumented

integer_variable_indices = ¶

Undocumented

operator = ¶

Undocumented

def _flatten(self, x): ¶

Undocumented

def _flatten2(self, x): ¶

Undocumented