python - 如何删除数据框的所有列都等于 None 的每一行

Question

例如 data frame example我想删除所有列 = NA 的每一行。我不想删除所有列中都没有 NA 的行。请给出一些建议并举例说明。我非常感谢您的帮助。

Answer 1

你可以尝试:

df.dropna(how='all', inplace=True)

来自documentation (pandas.DataFrame.dropna) :

how : {‘any’, ‘all’}, default ‘any’

Determine if row or column is removed from DataFrame, when we have at least one NA or all NA.

‘any’ : If any NA values are present, drop that row or column.

‘all’ : If all values are NA, drop that row or column.

和inplace :

inplace : bool, default False

If True, do operation inplace and return None.