Glossary of Expectations¶
This is a list of all built-in Expectations. Expectations are extendable so you can create custom expectations for your data domain! To do so see this article: How to create custom Expectations.
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.
Not all expectations are currently implemented for each backend. Please see Table of Expectation Implementations By Backend.
Missing values, unique values, and types¶
Sets and ranges¶
Datetime and JSON parsing¶
File data assets reason at the file level, and the line level (for text data).