module 'pandas' has no attribute 'Factor'

当你遇到"module 'pandas' has no attribute 'Factor'"的错误时，这是因为在较新的版本中，Pandas已经将`pd.Factor`方法废弃了。相反，你可以使用`pd.Categorical.from_codes`来替代它。 你可以将原代码中的 `df['species'] = pd.Factor(iris.target, iris.target_names)`这一行更改为`df['species'] = pd.Categorical.from_codes(iris.target, iris.target_names)`。这样就可以解决这个错误了。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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