rhiever/datacleaner

Replace +/- Infs with Max/Min

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#11 创建于 2017年5月22日

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 (1 评论) (0 反应) (0 负责人)Python (1,040 star) (211 fork)batch import
enhancementhelp wanted

描述

Hi there,

datacleaner seems quite interesting. Cleaning Data is always annoying and tools are missing.

If I have seen it right, you impute NaNs. You could also consider to replace +/- Infs by Max/Min of the respective column.

We have implemented that In the tsfresh impute function. Maybe you can use some of the code there.

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技术栈
pythonpandas
领域
data
议题类型
feature
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
1-3 hours
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
Basic pandasUnderstanding of imputation
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
60
研究方向
Look at the current imputation code in the repository, likely in a module like impute.py. Reference the tsfresh implementation at https://github.com/blue yonder/tsfresh/blob/ca0fdbf7c1f3f165b36f981dd59bd7dc34af4113/tsfresh/utilities/dataframe functions.py for inspiration. Implement logic to detect infinities and replace them with column min/max, ensuring compatibility with existing NaN imputation.