如何在pyspark列表中的值上过滤列?

问题描述

我有一个数据框原始数据，必须在其上对X列应用值CB，CI和CR的过滤条件.所以我用下面的代码:

I have a dataframe rawdata on which i have to apply filter condition on column X with values CB,CI and CR. So I used the below code:

df = dfRawData.filter(col("X").between("CB","CI","CR"))

但是我遇到以下错误:

请让我知道如何解决此问题.

Please let me know how I can resolve this issue.

推荐答案

between用于检查值是否在两个值之间，输入是下限还是上限.它不能用于检查列值是否在列表中.为此，请使用isin:

between is used to check if the value is between two values, the input is a lower bound and an upper bound. It can not be used to check if a column value is in a list. To do that, use isin:

import pyspark.sql.functions as f
df = dfRawData.where(f.col("X").isin({"CB", "CI", "CR"}))

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