looking for an example: fit multiple data (individually) and show them in gizmo 3D plot

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Thu, 04/07/2011 - 09:18 am

Hello,

This is quite a simple problem that I am trying to deal with. So, I was hoping that there are already good examples for this task.

Let's assume that I have UV absorption spectrum data at different temperature (T). The spectrum is basically Y = f(x) where x is wavelength and Y is the absorption. I have a model and I can fit the curve using a model function at different temperature. In the end, I will have multiple waves :

T0, ydata0, xdata0, yfit0, xfit0
T1, ydata1, xdata1, yfit1, xfit1
...
...


What I want to achieve is to plot these (data as scatter; and fits as line) in Gizmoplot, using x-axis for the wavelength and y-axis for the temperature. Could anyone please tell me if there is any similar examples ??

Thank you millions.
Can you write a two-variable model that includes both the temperature and the wavelength dependence? Then you could do the fit to all the data together. The curve fit would give you a matrix auto-destination wave, which you could plot very easily as a surface in Gizmo.

John Weeks
WaveMetrics, Inc.
support@wavemetrics.com

April 8, 2011 at 10:00 am - Permalink