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报错:UnicodeDecodeError: 'gbk' codec can't decode byte 0xfe in position 32: illeg 解决: import osos.environ['NLS_LANG'] = 'SIMPLIFIED CHINESE_CHINA.UTF8' 阅读全文
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知识点:通过标签进行选择 .loc[] df2 = df1.loc[df['c'] == 1] 即可! 参考文档: https://www.cnblogs.com/everfight/p/pandas_select_rows.html 阅读全文
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知识点:dropna() df1 = df.dropna(axis=0,subset = ['b']) (过滤掉b列有缺失的行,注意:若缺失值为空字符串则无法过滤) 详解: Signature: df.dropna(axis=0, how='any', thresh=None, subset=Non 阅读全文
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知识点:str.split() 如果切割出空值,想要去掉的话,注意:这里的空值是空字符串 df = df[df['b']!=''] 即可! 阅读全文