mars.dataframe.DataFrame.ffill#
- DataFrame.ffill(axis=None, inplace=False, limit=None, downcast=None)#
Synonym for
DataFrame.fillna()withmethod='ffill'.- 返回
Object with missing values filled or None if
inplace=True.- 返回类型
{klass} or None
Synonym for DataFrame.fillna() with method='ffill'.
Object with missing values filled or None if inplace=True.
{klass} or None