Getting a curve to fit my points

[Genecks]

So, I have a table of data, and I'm trying to get a curve to fit the points.
I haven't tried excel yet, but I have tried these things:
1) Openoffice.org
2) Gnumeric
3) XMGrace

- Gnumeric was straight-forward, but lacked many abilities.
- Openoffice.org couldn't fit the curve well enough
- And XMGrace wouldn't consider the maximum Y-value as a graphing constraint.

So, I'm trying to figure out this:
How do I fit a decent curve to my graph while having the curve feature take consideration of the maximum and minimum y-values?

Take a look at this for more information:
http://www.oooforum.org/forum/viewtopic.phtml?t=88559

 

[CFDFEAGURU]

Are you trying to fit to linear or non-linear data? Also, don't assume a good fit simply by looking at the results. Always ask yourself, could there be a better fit than mine? Lastly, are you familiar with the Chi Squared method?

Thanks
Matt

 

[oswaler]

I would suggest exploring different curve fitting methods and software packages to find the best fit for your data. Excel is a commonly used tool for curve fitting, so it may be worth trying out. Additionally, there are various statistical software programs that offer advanced curve fitting capabilities, such as MATLAB or Python's SciPy library. It may also be helpful to consult with a statistician or data analysis expert for guidance on selecting the most appropriate curve fitting method for your specific data set. In terms of considering the maximum and minimum y-values as constraints, some curve fitting methods allow for the incorporation of constraints or boundaries in the fitting process. Again, it may be helpful to consult with an expert in this area for guidance. Overall, it is important to carefully consider the limitations and assumptions of any curve fitting method and to thoroughly evaluate the fit of the curve to your data.