Pandas isna()和isull()有什么区别? [英] Pandas isna() and isnull(), what is the difference?

问题描述

熊猫同时具有isna()和isnull().我通常使用isnull()来检测丢失的值，并且从未遇到过这种情况，因此我不得不使用其他方法. 那么，什么时候使用isna()?

Pandas has both isna() and isnull(). I usually use isnull() to detect missing values and have never met the case so that I had to use other than that. So, when to use isna()?

推荐答案

isnull是isna的别名.从字面上看熊猫代码源:

isnull is an alias for isna. Literally in the code source of pandas:

isnull = isna

确实:

>>> pd.isnull
<function isna at 0x7fb4c5cefc80>

所以我建议使用isna.

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