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Implementação dos algoritmos de árvore de decisão ID3, C4.5 e CART do zero

Project description

Minhas Árvores

Implementação educacional dos algoritmos ID3, C4.5 e CART em Python.

Instalação

pip install numpy pandas scikit-learn

Uso

from minhas_arvores import ID3, C45, CART
import pandas as pd

dados = pd.DataFrame({
    'Tempo': ['Sol', 'Nublado', 'Chuva'],
    'Jogar': ['Não', 'Sim', 'Sim']
})

X = dados[['Tempo']]
y = dados['Jogar']

# Treinar
id3 = ID3()
id3.fit(X, y)

# Predizer
resultado = id3.predict({'Tempo': 'Sol'})
print(resultado)

Exemplo Completo

python exemplo_uso.py

Algoritmos

  • ID3: Ganho de informação, categóricos apenas
  • C4.5: Razão de ganho, suporta contínuos e missing values
  • CART: Gini index, divisões binárias

Licença

MIT

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