Daniel Lakeland on Nostr: In my book I'm writing a chapter on using integration to build models. In that ...

In my book I'm writing a chapter on using integration to build models. In that chapter I make an analogy to the split-apply-combine idea in data analysis. For example, you could split up a population of people by age, apply a risk function for cancer to each age, then integrate across age to get a total combined rate of new cancer diagnoses. A lot of models in science are like this, a thing varies a bunch so we split it up, apply some function, and integrate it back together.