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So today is day 1 of 100.

This story is from 2026-09-20. It is preserved in the archive; the latest stories are on the live feed.

I started with linear regression and did it properly this time, from scratch, with no sklearn doing the work. Here's how the day went: Intuition first. What it means to fit a line through data, and what "best fit" is actually measuring. Cost function. Wrote out MSE and worked through why the errors…

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  1. 2026-09-20 15:28 · DEV Community — Machine Learning
    So today is day 1 of 100.

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