Comments (2)
In order to have a UDP (user defined problem) you need to define a class (see https://esa.github.io/pagmo2/docs/python/tutorials/coding_udp_simple.html)
Example:
>>> class sphere_function:
... def fitness(self, x):
... return [sum(x*x)]
...
... def get_bounds(self):
... return ([-1,-1],[1,1])
Then you will be able to construct a pygmo problem with it:
>>> import pygmo as pg
>>> prob = pg.problem(sphere_function())
Note that the signature of the method fitness needs to be:
... def fitness(self, x):
since you have arguments (data) you will need to put those as class members when you construct the class. They will then be accessible from the fitness calls.
Does that clarify the intended use?
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Thanks! It helped.
from pagmo2.
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