Group Customers Automatically with K-Means in Python (From an Excel File)
Use k-means clustering to split customers into segments by orders, spend and recency — reading from and writing back to Excel with pandas and…
Read article →Category Archives: Machine Learning
Regression, trees and clustering in Python and Excel, from scratch.
Decision Trees in Python: A Model You Can Actually Read
Decision Trees in Python: A Model You Can Actually Read
Train a decision tree classifier with scikit-learn, print its rules as plain if/else text, measure accuracy honestly with a test split, and avoid overfitting…
Read article →Linear Regression From Scratch in Python: How a Model Actually Learns
Linear Regression From Scratch in Python: How a Model Actually Learns
Code linear regression with gradient descent in plain NumPy, watch the model learn slope and intercept, then check it against NumPy and scikit-learn. The…
Read article →Linear Regression in Excel with LINEST, SLOPE and FORECAST — No Add-ins
Linear Regression in Excel with LINEST, SLOPE and FORECAST — No Add-ins
Machine learning starts with a straight line. Fit a regression in Excel with SLOPE, INTERCEPT, RSQ, LINEST and FORECAST.LINEAR, and learn how to read…
Read article →AI vs Machine Learning vs Deep Learning vs LLM: The Difference in 5 Minutes
AI vs Machine Learning vs Deep Learning vs LLM: The Difference in 5 Minutes
AI, machine learning, deep learning and LLMs are nested ideas, not rivals. A short, jargon-free explanation with everyday examples of each.
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