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http://datascienceschool.net/01%20python/04.08%20%EC%8B%9C%EA%B3%84%EC%97%B4%20%EC%9E%90%EB%A3%8C%20%EB%8B%A4%EB%A3%A8%EA%B8%B0.html
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s = df["date"].squeeze() df_m = s.dt.month.to_frame() df_m.rename(columns={'date':'month'}, inplace=True) #df_m
df2 = pd.concat([df, df_m], axis=1) #df2 df2.value.groupby(df2.month).sum()
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np.random.seed(0) df=pd.DataFrame({ 'date': pd.date_range('2020-12-25',periods=100,freq='D'), 'value': np.random.randint(100,size=(100,))}) df.set_index('date') df['month']=df['date'].dt.month df.groupby('month')['value'].sum()
df.groupby(df["date"].dt.month).sum()
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4.8 시계열 자료 다루기 — 데이터 사이언스 스쿨
http://datascienceschool.net/01%20python/04.08%20%EC%8B%9C%EA%B3%84%EC%97%B4%20%EC%9E%90%EB%A3%8C%20%EB%8B%A4%EB%A3%A8%EA%B8%B0.html
The text was updated successfully, but these errors were encountered: