Re: Nonlinearfit to Data
- To: mathgroup at smc.vnet.net
- Subject: [mg17085] Re: Nonlinearfit to Data
- From: jim leddon <jleddon at airmail.net>
- Date: Fri, 23 Apr 1999 02:32:18 -0400
- Sender: owner-wri-mathgroup at wolfram.com
[Contact the author to get a notebook that was attached - moderator] Hi folks, I am trying to fit a data set of length = 311 points which represent std. deviations values. As seen in the attached file, a listplot of the data looks as if the data follows a strechted exponential plus a modulated (sin/Cos func.) inverse power law of the form: a Exp[-alpha -beta x^n] + (A + B Sin[phase + 2 Pi x]) x^-m . I've tried using the "NonLinearFit function and the fit that I've gotten is about the best I can get at this point after a significant amount of tweeking!. Anybody have any ideas on how to achieve a better fit to this data? I'd appreciate any suggestions/ help. Regards, Debbie