建立聚合层级的 Expectations
现在来练习在聚合层级编写一些列级 Expectations。Expectation Suite 和 Batch 分别已赋给变量 suite 和 batch，并已加载 Shein Footwear 数据集。Great Expectations 和 pandas 分别可用作 gx 和 pd。
本练习是课程的一部分
使用 Great Expectations 的数据质量入门
交互式实操练习
通过完成这段示例代码来试试这个练习。
# "colour" should be in the set "Khaki", "Purple", or "Grey"
colour_expectation = gx.expectations.ExpectColumnDistinctValuesToBeInSet(
____="colour", value_set={"Khaki", "Purple", "Grey"}
)
# "seller_name" should have 7 to 10 distinct values
seller_expectation = gx.expectations.ExpectColumnUniqueValueCountToBeBetween(
column="seller_name", ____=7, ____=10
)
# "link" should have all unique values
link_expectation = gx.expectations.____(
column="link"
)
# "review_count" should have a most common value in the set "0" or "100+"
review_count_expectation = gx.expectations.ExpectColumnMostCommonValueToBeInSet(
column=____, value_set=____
)