Cross-Validation From Scratch and a Surprise at n=100

Textbooks say LOOCV has the lowest bias but highest variance compared to 10 and 5-fold. Coded a K-Fold CV from scratch for learning to test that on simulated data 🔍📊 — and at n=1000 it holds up. At n=100? Not so much. 🤔 The above image was generated via chatGPT. Uploaded all the text of this blog post and asked it to generate a cartoon. Very impressive! It used to be spelling error and…