LESQ, General Non-Linear Least Squares
Lars Palmer, A B Hassle, Molndal, Sweden
LES-Q implements the Gauss-Newton method for determining
the best fit constants to a given non-linear curve.
The theoretical method is well described in the write-up to
FOCAL8-72 (the mathematical methods used are the same,
but there is no relationship in the programs). The program
contains the following features:
a) The function to be used is written as a FORTRAN func-
tion and added to the system.
b) All derivatives needed are calculated numerically.
c) The program will accept up to 6 constants and up to 30
d) The program calculates the error matrix for all the con-
stants and outputs a table of calculated y values versus
e) In an FPP-12 configuration the program iterates most
functions in under 10 seconds.
PDP-8, any F4 system, OS/8
|Other Programs Needed:|
F4 compiler; write-up to DECUS
12K in OS/8