110554     POLFIT: A General Polynomial Fitting Program  Version: June
1982
 
Submitted by: Timothy J. Rolfe, University of Chicago, Chicago, IL
 
Operating System: RSX-11, RT-11, VAX/VMS  Source Language: FORTRAN IV
V2.04  Memory Required: 15K (RT-11) to 241 pages (VAX/VMS)  Keywords:
Mathematical, Plotting
 
Abstract: POLFIT is an interactive program fitting the function
f(x) to data input as X,Y pairs, where f(x) has the
function form
 
f(x) = a1*x**p1 + a2*x**p2 + . . . ;
 
the powers p are arbitrary real numbers specified by the
user; and the returned coefficients provide the best
least-squares fit.
 
Data are input under user-specified format(s) from one
or two files. The powers and the number of coefficients
are specified interactively, and the program returns the
fitted coefficients and the goodness-of-fit parameter
rho**2.
 
The program includes a line-printer/terminal plotting
option allowing display of the data and the fitted
curve.
 
Media (Service Charge Code): Write-Up (AA), One RX01 Diskette (KA)
Format: RT-11, 600' Magnetic Tape (MA)  Format: DOS-11