Re: Curvefit on PV-Wave

["Mark D. Williams" <xxxnospammarkwnospamxxx(at)resource-eng.com>]

Hi Kyle,

"R. Kyle Justice" wrote:
> 
> Does anyone have a *PV-Wave* routine that will perform a non-linear
> least squares fit?  Apparently I am not the only one unhappy with
> the standard CURVEFIT function

Do have the IMSL Math/Stats option for PV-WAVE? If so,
then a good option for non-linear fitting is the
NLINSQ function, which solves a nonlinear least-squares
problem using a modified Levenberg-Marquardt algorithm.

Hope this helps,
M. Williams
Resource Engineering, Inc.