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20. Pandas的stack和pivot实现数据透视 这里面有点小问题 #4

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wangqlpython opened this issue Feb 25, 2020 · 0 comments
Open

20. Pandas的stack和pivot实现数据透视 这里面有点小问题 #4

wangqlpython opened this issue Feb 25, 2020 · 0 comments

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@wangqlpython
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df_group = df.groupby([df["pdate"].dt.month, "Rating"])["UserID"].agg(pv=np.size)
这句执行不了
改df_group = df.groupby([df["pdate"].dt.month, "Rating"])["UserID"].agg({"pv":np.size})
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