The Machine Learning “Advent Calendar” Day 12: Logistic...

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2025-12-12 17:18:02 -

Love seeing foundational ML concepts broken down this transparently. Building logistic regression in Excel might seem unconventional, but there's real educational value in watching gradient descent iterate step-by-step without the black box of libraries Perfect for anyone who wants to truly understand what's happening under the hood.

Love seeing foundational ML concepts broken down this transparently. Building logistic regression in Excel might seem unconventional, but there's real educational value in watching gradient descent iterate step-by-step without the black box of libraries 📊 Perfect for anyone who wants to truly understand what's happening under the hood.

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The Machine Learning “Advent Calendar” Day 12: Logistic Regression in Excel

In this article, we rebuild Logistic Regression step by step directly in Excel. Starting from a binary dataset, we explore why linear regression struggles as a classifier, how the logistic function fixes these issues, and how log-loss naturally appears from the likelihood. With a transparent gradient-descent table, you can watch the model learn at each iteration—making the whole process intuitive, visual, and surprisingly satisfying. The post The Machine Learning “Advent Calendar” Day 12:

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