39. End-to-End Machine Learning Project (India Dataset)
39.5 Practice, Tip and Close
Why. Lock Block B by repeating the pipeline without scrolling the chapter.
How.
Chapter practice / project checklist
- Change the label to a fictional Blinkit “will_reorder_snacks” problem with your own 20 rows.
- Run: clean → X/y → split → two models → metrics → train/test gap check.
- Write a 5-line summary a store manager could read.
- List which earlier chapters you used (25–34).
Stretch
Add predict_proba and try threshold 0.4 for the logistic model; note how recall moves.
Thodkyaat sangaycha tar (quick recap)
- End-to-end = question → data → split → model → metrics → sanity check
- Try more than one model on the same split
- Speak results in business language
- Block B classical ML toolkit is now in your hands
Samajla ka? Classical ML project done. Next: Chapter 40 — Data Preprocessing for Machine Learning (missing values, scaling, encoding).