Rastrigin

Complexity

Total Complexity

4

Size/Duplication

Total Lines	19
Duplicated Lines	0 %

Importance

Changes	2
Bugs	0	Features	2

3 Methods

Rating	Name	Duplication	Size	Complexity
A	__init__()	0	3	1
A	function()	0	13	3
A	evaluate()	0	9	2

"""Implementation of Rastrigin benchmark function."""
import math

__all__ = ['Rastrigin']


class Rastrigin(object):

    def __init__(self, Lower=-100, Upper=100):
        self.Lower = Lower
        self.Upper = Upper

    @classmethod
    def function(cls):
        def evaluate(D, sol):
            val = 0.0

            for i in range(D):
                val = val + \
                    math.pow(sol[i], 2) - 10 * math.cos(
                        2 * math.pi * sol[i]) + 10

            return val

        return evaluate