regress.9xf (for the TI-92 Plus)
Version 1.0
Copyright Bhuvanesh Bhatt (bbhatt1@towson.edu)
Updated February 4th, 2000.
Usage: regress(xlist,ylist,reglist)
Example: regress(seq(i,i,1,5,0.5),Pi*seq(i,i,1,5,0.5)+1,{x,x^2})
gives
y=3.14159*x+1.
(There is no x^2 coefficient.)
Note that regress( ) can (currently) find only the coefficients of the regression-list.
It cannot, for example, find the values of b or c in the regression model:
y=a*x^2+sin(b*x+c)
This capability may be improved in the future with a Flash application for regression.
Credit: I found this technique in my Statistics book, but I don't remember the name of
the book. I will post the name as soon as I find it.
Copyright: This function may be freely distributed (not for profit) provided
the function is unmodified and this documentation is supplied with it.
Any questions/comments/suggestions can be e-mailed to me at
bbhatt1@towson.edu
Bhuvanesh Bhatt.