Schwefel

Complexity

Total Complexity

4

Size/Duplication

Total Lines	21
Duplicated Lines	0 %

Importance

Changes	1
Bugs	0	Features	0

3 Methods

Rating	Name	Duplication	Size	Complexity
A	function()	0	15	3
A	evaluate()	0	11	2
A	__init__()	0	3	1

"""Implementation of Schwefel function."""
import math

__all__ = ['Schwefel']


class Schwefel(object):

    def __init__(self, Lower=-500, Upper=500):
        self.Lower = Lower
        self.Upper = Upper

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

            val = 0.0
            val1 = 0.0

            for i in range(D):
                val1 += (sol[i] * math.sin(math.sqrt(abs(sol[i]))))

            val = 418.9829 * D - val1

            return val

        return evaluate