如何检查dask数据框是否为空 [英] How to check if dask dataframe is empty

问题描述

是否有等效于pandas empty函数的功能?我想检查dask数据框是否为空，但df.empty返回AttributeError: 'DataFrame' object has no attribute 'empty'

Is there a dask equivalent of pandas empty function? I want to check if a dask dataframe is empty but df.empty return AttributeError: 'DataFrame' object has no attribute 'empty'

推荐答案

Dask当前不支持此功能，但是您可以即时计算长度:

Dask doesn't currently support this, but you can compute the length on the fly:

len(df) == 0

---

len(df.index) == 0 # Likely to be faster 

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