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英文: Add multiple columns lagged by one year 问题 我需要在我的数据框中添加多列的1年滞后版本。以下是我的数据： ```R data<-data.fra...
141dataframe
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英文: Retrieve last row of data with conditions 问题 我有以下的大型数据集，记录了数学竞赛结果，按日期降序排列：例如，学生1在比赛1中获得第三名，而学生3在...
146pandas
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英文: dataframe apply lambda function that requires value from row n+1 问题 import geopy.distance distCa...
138pandas
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英文: Set values in dataframe A by iterating from values on dataframe B 问题 DataFrame A 与以下类似： info2 = ...
141pandas
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英文: Function in python to remove users who haven't purchased a specific brand/item from a pool o...
131pandas
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英文: Python - Link 2 columns 问题 以下是您要翻译的内容： "I want to create a data frame to link 2 columns tog...
156pandas
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英文: Export dataset haveing more than 1048576 rows, in multiple sheets of single excel file, in Pytho...
159pandas
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英文: Add a column in pandas based on sum of the subgroup values in another column 问题 以下是您数据框的简化版本（数据框...
121pandas
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英文: R: How to give the same id number to each person in a data frame based on a different data frame...
140dataframe
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英文: Create conditional factor based on counts within a separate level 问题 以下是您要翻译的代码部分： I have what I...
125dataframe
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141评论dataframe
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