【2019-01-23】数据清理、转换、合并、重塑
2019-01-23 本文已影响0人
BigBigFlower
数据重排
(1)pivot 透视表 、reshape 重塑
重塑层次化索引
(a)stack 列旋转为行 (b)unstack 行旋转为列
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数据转换
(1)移除重复数据duplicate
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(2)利用函数或映射进行数据转化
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重命名索引
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数据离散化和面元划分
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检测和过滤异常值
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重排序
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哑变量矩阵/指标矩阵
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模式匹配
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数据重排
(1)pivot 透视表 、reshape 重塑
重塑层次化索引
(a)stack 列旋转为行 (b)unstack 行旋转为列
数据转换
(1)移除重复数据duplicate
(2)利用函数或映射进行数据转化
重命名索引
数据离散化和面元划分
检测和过滤异常值
重排序
哑变量矩阵/指标矩阵
模式匹配