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RSS订阅原创 cankao 3-46
from pandas import Series,DataFrame,npfrom numpy import nan as NAdata = DataFrame(np.random.randn(7,3))data.iloc[:4,1]=NAdata.idloc[:2,2]=NAprint("data")print("...........")print(data.fillna({1:111,2:222}))
2024-10-16 16:22:27
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原创 [参考示例3-45]
from pandas import Series,DataFrame,npfrom numpy import nan as NAdata=DataFrame(np.random.rabdn(7,3))data.iloc[:4,1]=NAdata.iloc[:2,2]=NAprint(data)print("...........")print(data.fillna(1))
2024-10-10 18:42:28
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