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

A recent educational approach demonstrates how to reconstruct logistic regression directly within Excel, providing a transparent and step-by-step visualization of the model's learning process. By starting with a binary dataset, the method illustrates the limitations of linear regression as a classifier, explains how the logistic function addresses these issues, and shows how log-loss naturally emerges from the likelihood function. This approach employs a clear gradient descent table, allowing users to observe the iterative updates of model parameters in real-time, making the learning process intuitive and accessible. Such visualizations enhance understanding of core machine learning concepts, bridging theoretical foundations with practical implementation, all within