(11-13-2019 12:20 PM)Dave Britten Wrote: I use this simple program if I need plain old linear regression on my 41:

http://dave.brittens.org/HP41C/LinearRegression.txt

I can't remember if I wrote it or found it somewhere else and adapted it slightly. This works off the standard stat registers, so you don't have to use a special program to enter data, and it includes tiny routines for predicting x or y from the value of the other variable. It fits an equation of the form y=mx+b, and also computes correlation.

Simple, and it works. Thanks!