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- N O N L I N
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- Nonlinear Statistical Regression Analysis Program
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- Copyright (c) 1992, 1993
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- Phillip H. Sherrod
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- Member, Association of Shareware Professionals (ASP)
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- Nonlin performs statistical regression analysis to estimate the
- values of parameters for linear, multivariate, polynomial, and
- general nonlinear functions. The regression analysis determines
- the values of the parameters which cause the function to best fit
- the observed data that you provide. You specify the form of the
- function whose parameters are being estimated using ordinary
- algebraic notation. In addition to determining the parameter
- estimates, Nonlin can be directed to generate an output file with
- predicted values and residuals. It can also plot the data
- observations and the computed function. Although designed for
- regression analysis, Nonlin can also be used to find the root
- (zero point) or minimum absolute value of a nonlinear expression.
- Nonlin is in use at many engineering and research centers around
- the world.
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- SUMMARY OF MAIN FEATURES
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- . Fits general equation to data values.
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- . Form of equation is specified using normal algebraic
- notation.
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- . A library of built-in function is included for use in
- specifying the equation. The built-in functions include
- trig, exponential, log, Bessel, elliptic integrals, and many
- others.
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- . Nonlin handles multivariate functions; up to 12 parameter
- values may be estimated.
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- . A "SWEEP" command allows you to specify a range of starting
- values in case the function has both local and global
- minimums.
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- . Student's `t' statistic and associated probability is
- computed for each estimated parameter providing an estimate
- of the significance of the value.
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- . Confidence intervals can be computed.
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- . Other statistics are computed including `F', coefficient of
- multiple determination, and Durbin-Watson.
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- . The data and fitted equation can be plotted in high
- resolution on the console or a HP LaserJet printer.
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- . Nonlin can be used to find the root, or point of minimum
- absolute value, of a nonlinear function.
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- . Nonlin uses a state-of-the-art "adaptive" nonlinear
- minimization algorithm that is as good, or better, than you
- are likely to find in even the most expensive nonlinear
- regression packages.
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- SYSTEM REQUIREMENTS
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- Nonlin will run on any IBM PC compatible computer under MS-DOS
- version 3.0 or higher. A minimum of 500K of free RAM is
- necessary (less if LaserJet plotting is not performed).
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- The program does not need a numeric coprocessor but will use it
- if available. A coprocessor is highly recommended for large
- analyses.
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- =================================================================
- Software Order Form
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- Name ______________________________________________________
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- Address ___________________________________________________
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- City _______________________ State _______ Zip ___________
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- Telephone _________________________________________________
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- CompuServe account (optional) _____________________________
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- Nonlin version ____________________________________________
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- Bulletin board where you found Nonlin _____________________
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- Comments __________________________________________________
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- Check the box below which indicates your order type:
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- ___ I wish to register Nonlin ($25).
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- ___ I wish to order Mathplot ($20).
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- ___ I wish to register Nonlin and order Mathplot ($40).
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- Add $5 to any amount shown above if the software is being shipped
- out of the United States.
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- In return for registering, you will receive the registered
- version of the program, a laser-printed, bound copy of the
- manual, and three months of telephone or CompuServe support.
- Your registration fee will be refunded if you find a serious bug
- that cannot be corrected.
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- Distribution disk choice (check one):
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- 3.50" HD (1.4 MB) ______
- 5.25" HD (1.2 MB) ______
- 5.25" DD (360 KB) ______
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- Send this form with the amount indicated to the author:
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- Phillip H. Sherrod
- 4410 Gerald Place
- Nashville, TN 37205-3806 USA
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- 615-292-2881 (evenings)
- CompuServe: 76166,2640
- Internet: 76166.2640@compuserve.com
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