From the course: Testing Python Data Science Code

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Regression testing overview

Regression testing overview - Python Tutorial

From the course: Testing Python Data Science Code

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Regression testing overview

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- [Narrator] Regression testing is rerunning functional and nonfunctional tests to ensure that previously developed and tested software still performs after a change. Regression testing will help you decide if the new feature you're thinking of the adding to the model is worth it. It'll also show you if the new feature that improved your model accuracy by 15% is slowing down execution time by 20%. The question, if this trade off is worth it is an open one and should be answered by business people and domain experts.

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