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        "author": "Eduardo S. Pereira",
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        "description": "# PyGENEC\n\nGenetic algorithm in Python and Numpy.\n\n## Instalation\n\n```bash\n$ pip install pygenec\n```\n\nOr\n\n\n```bash\n$ python setup.py install\n```\n\n\n\n## Usage\n\n```python\nfrom numpy import exp, array, mgrid\nimport matplotlib.pyplot as plt\nfrom mpl_toolkits.mplot3d import axes3d\nfrom matplotlib.animation import FuncAnimation\n\n\nfrom pygenec.populacao import Populacao\nfrom pygenec.selecao.roleta import Roleta\nfrom pygenec.cruzamento.kpontos import KPontos\nfrom pygenec.mutacao.flip import Flip\nfrom pygenec.evolucao import Evolucao\n\n\ndef func(x, y):\n    tmp = 3 * exp(-(y + 1) ** 2 - x **2)*(x - 1)**2 \\\n          - (exp(-(x+ 1) ** 2 - y **2) / 3 )\\\n          + exp(-x **2 - y ** 2) * (10 * x **3 - 2 * x + 10 * y ** 5)\n    return tmp\n\n\ndef bin(x):\n    cnt = array([2 ** i for i in range(x.shape[1])])\n    return array([(cnt * x[i,:]).sum() for i in range(x.shape[0])])\n\n\ndef xy(populacao):\n    colunas = populacao.shape[1]\n    meio = int(colunas / 2)\n    maiorbin = 2.0 ** meio - 1.0\n    nmin = -3\n    nmax = 3\n    const = (nmax - nmin) / maiorbin\n    x = nmin + const * bin(populacao[:,:meio])\n    y = nmin + const * bin(populacao[:,meio:])\n    return x, y\n\n\ndef avaliacao(populacao):\n    x, y = xy(populacao)\n    tmp = func(x, y)\n    return tmp\n\n\ngenes_totais = 16\ntamanho_populacao = 100\n\npopulacao = Populacao(avaliacao, genes_totais, tamanho_populacao)\nselecao = Roleta(populacao)\ncruzamento = KPontos(tamanho_populacao)\nmutacao = Flip(pmut=0.9)\nevolucao = Evolucao(populacao, selecao, cruzamento, mutacao)\n\nevolucao.nsele = 10\nevolucao.pcruz = 0.5\n\n\nfig = plt.figure(figsize=(100, 100))\nax = fig.add_subplot(111, projection=\"3d\")\nX, Y = mgrid[-3:3:30j, -3:3:30j]\nZ = func(X,Y)\nax.plot_wireframe(X, Y, Z)\n\nx, y = xy(populacao.populacao)\nz = func(x, y)\ngraph = ax.scatter(x, y, z, s=50, c='red', marker='D')\n\ndef update(frame):\n    evolucao.evoluir()\n    x, y = xy(populacao.populacao)\n    z = func(x, y)\n    graph._offsets3d = (x, y, z)\n\nani = FuncAnimation(fig, update, frames=range(10000), repeat=False)\nplt.show()\n```\n\n\n",
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        "license": "Apache License 2.0",
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