Sunday, 06 September 2026
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Testing data and models

Expert data science: production, scale and responsibility · lesson 5 of 10

Lesson 5 needs a free account

The first 3 lessons of every track are open to everyone. From here on Yanjye has to remember where you stopped, mark your exam and put your name on the certificate — so it needs to know who you are.

This lesson: Write tests that catch data and model regressions in CI.

  • Free — the lessons and the exam never cost anything
  • Your progress is saved across every device
  • Pass the exam and earn a certificate anyone can verify

Or go back to Expert data science: production, scale and responsibility and finish the free lessons first.

All lessons in this track

  1. 1
  2. 2
  3. 3
  4. 4
    Monitoring: models decay ~30 min account needed
  5. 5
    Testing data and models ~30 min account needed
  6. 6
    Data too big for pandas ~30 min account needed
  7. 7
    Time series done properly ~30 min account needed
  8. 8
    Deep learning: when and how ~35 min account needed
  9. 9
  10. 10
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