Machine learning tutorials mini-site

It’s been ages since I wrote my last post. I am planning to be more active from now on (I hope). I’ve been wanting to do a mini-site with machine learning tutorials for years and finally here it is! The mini-site is ml-tutorials.kyrcha.info and its GitHub repo:...

Fitting a sigmoid curve in R

This is a short tutorial on how to fit data points that look like a sigmoid curve using the nls function in R. Let’s assume you have a vector of points you think they fit in a sigmoid curve like the ones in the figure below. The general form of the logistic or sigmoid...