Accuracy Tests¶
TestGen accuracy tests measure data that attempts to model real-world objects or events by comparing them with information known to be correct.
Description and details¶
Aggregate Minimum¶
Tests that aggregate values for each set of column values are at least the same as reference dataset.
This test is not auto-generated. You can create it manually from the Test Definitions page.
Custom Test¶
Custom SQL Query Test. A highly flexible business-rule test covering any error state that can be expressed by a SQL query against one or more tables in the database.
This test is not auto-generated. You can create it manually from the Test Definitions page.
New Shift¶
Tests for statistically significant shift in mean of new values for column compared to average calculated at baseline.
The system automatically generates this test.
Outliers Above¶
Tests that percent of outliers over two standard deviations above mean does not exceed threshold.
The system automatically generates this test.
Outliers Below¶
Tests that percent of outliers over two standard deviations below mean does not exceed threshold.
The system automatically generates this test.
Variability Decrease¶
Tests that the spread or dispersion of column values has decreased significantly over baseline, indicating a shift in stability of the measure. This could signal a change in a process or a data quality issue.
The system automatically generates this test.
Variability Increase¶
Tests that the spread or dispersion of column values has increased significantly over baseline, indicating a drop in stability of the measure. This could signal a change in a process or a data quality issue.
The system automatically generates this test.