Glossary of Expectations¶
Dataset¶
Dataset objects model tabular data and include expectations with row and column semantics. Many Dataset expectations are implemented using column_map_expectation and column_aggregate_expectation decorators.
Table shape¶
Missing values, unique values, and types¶
Sets and ranges¶
String matching¶
Datetime and JSON parsing¶
Aggregate functions¶
expect_column_distinct_values_to_contain_set
expect_column_distinct_values_to_equal_set
expect_column_mean_to_be_between
expect_column_median_to_be_between
expect_column_stdev_to_be_between
expect_column_unique_value_count_to_be_between
expect_column_proportion_of_unique_values_to_be_between
expect_column_most_common_value_to_be_in_set
expect_column_max_to_be_between
expect_column_min_to_be_between
expect_column_sum_to_be_between
Column pairs¶
Distributional functions¶
FileDataAsset¶
File data assets reason at the file level, and the line level (for text data).