https://blog.csdn.net/qq_42902997/article/details/121667555
df = pd.DataFrame({"性别":["男","女","女","女","男","男","男","男","男","女","女","男"]})
df["性别"] = pd.Categorical(df["性别"]).codes
pandas字符串列数值化 转换成离散的数值标签
https://blog.csdn.net/qq_42902997/article/details/121667555
df = pd.DataFrame({"性别":["男","女","女","女","男","男","男","男","男","女","女","男"]})
df["性别"] = pd.Categorical(df["性别"]).codes
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