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新建文件 新建 Diagram 文件

slapy

test

LICENSE

README.rst

requirements.txt

setup.py

slapy

1. install from pypi:

pip install snowland-algorithm

or from source code:

download code from https://gitee.com/hoops/snowland-algorithm-python, you can choose a release version pip install -r requirements.txt python setup.py install

1. dirs

   1. graph

      1. dijkstra(v0.0.1+)
      2. spfa(v0.0.1+)

   2. swarm

      1. pso(v0.0.1+)
      2. gso(v0.0.2+)
      3. fa(v0.0.3+)
      4. cso(v0.0.6+)
      5. ba(v0.0.6+)
      6. sfla(v0.0.6+)
      7. bas(v0.0.6+)
      8. sa(v0.0.6+)
      9. fwa(v0.0.6+)

2. quick use

   1. import package >>> from slapy.swarm.package_name import engine_name 2. define the fitness function example:

   >>> fun = lambda x: np.cos(x[0]) + np.sin(x[0]) - x[0] * x[1]
   

   note: arg need to be 1 X n vector 3. run the model >>> engine = engine_name(your_args) >>> engine.run() 4. show result >>> x, y = engine.gbest.chromosome >>> print('max value', fun(engine.gbest.chromosome)) >>> print('x:', x, 'y:', y) There is a example for PSO.

   >>> def fun(vars):
   >>> # fitness function
   >>> x, y = vars
   >>> if 1 <= x <= 2 * np.pi and 1 <= y <= np.pi:
   >>> return np.cos(x) + np.sin(x) - x * y
   >>> else:
   >>> return -2 - 4 * np.pi ** 2 # return a small float number can not reach
   

   >>> if __name__ == '__main__':
   >>> engine = PSOEngine(vmax=0.01, bound=[[1, 2 * np.pi]], min_fitness_value=-1, dim=2, fitness_function=fun, steps=100)
   >>> engine.run()
   >>> x, y = engine.gbest.chromosome
   >>> print('max value', fun(engine.gbest.chromosome))
   >>> print('x:', x, 'y:', y)
   

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