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Re: Curve fitting an exponential with PV-Wave
| Re: Curve fitting an exponential with PV-Wave [message #6353] |
Fri, 21 June 1996 00:00 |
bowman
Messages: 121
Registered: September 1991
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Senior Member |
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In article <4qeavr$is3@maze.dpo.uab.edu>, rkj@dukebar.crml.uab.edu (R.
Kyle Justice) wrote:
> I have some data that I want to fit to an exponential curve
> in order to obtain the time constant. The equation I want
> to fit my data to is:
> y = a(1 - exp(-x/tau)) + c
>
> Is there a way to do this with standard PV-Wave functions? I
> tried CURVEFIT but this fits to a function made up of Gaussian
> and a polynomial, I believe.
No, you can define your own function (and its derivatives, if
analytical). There is an example in the help.
Ken Bowman
--
Kenneth P. Bowman, Assoc. Prof. 409-862-4060
Department of Meteorology 409-862-4132 fax
Texas A&M University bowman@csrp.tamu.edu
College Station, TX 77843-3150
Satellite ozone movies on CD-ROM --> http://www.lenticular.com/
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