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Groups > comp.graphics.apps.gnuplot > #3424

Re: fitting for Bateman equation returns NaN

From Michael Okuntsov <okuntsov.mikhail@yandex.ru>
Newsgroups comp.graphics.apps.gnuplot
Subject Re: fitting for Bateman equation returns NaN
Date 2016-11-02 22:12 +0700
Organization A noiseless patient Spider
Message-ID <nvcvov$qad$1@dont-email.me> (permalink)
References <c9696e77-4fc9-4466-9175-bff4ac3d6ef0@googlegroups.com>

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02.11.2016 21:44, apsara@connect.hku.hk пишет:
> N=7998.68795
> M=8540.4184
> A=.04951051
>
> direct(x)=M*exp(-B*x)
> fed(x)=(A*N/(B-A))*(exp(-A*x)-exp(-B*x))
> f(x)=fed(x)+direct(x)

Define initial parameter:

B=-0.1
...

Final set of parameters            Asymptotic Standard Error
=======================            ==========================

B               = 0.00513442       +/- 1.593e-06    (0.03103%)

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Thread

fitting for Bateman equation returns NaN apsara@connect.hku.hk - 2016-11-02 07:44 -0700
  Re: fitting for Bateman equation returns NaN Michael Okuntsov <okuntsov.mikhail@yandex.ru> - 2016-11-02 22:12 +0700
    Re: fitting for Bateman equation returns NaN apsara@connect.hku.hk - 2016-11-03 02:41 -0700
      Re: fitting for Bateman equation returns NaN Michael Okuntsov <okuntsov.mikhail@yandex.ru> - 2016-11-03 17:11 +0700
      Re: fitting for Bateman equation returns NaN Michael Okuntsov <okuntsov.mikhail@yandex.ru> - 2016-11-03 17:16 +0700
      Re: fitting for Bateman equation returns NaN Hans-Bernhard Bröker <HBBroeker@t-online.de> - 2016-11-03 15:38 +0100
        Re: fitting for Bateman equation returns NaN Dan Connelly <djconnel@gmail.com> - 2016-11-04 15:31 -0700

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