Re: Fitting Experimental Data
- To: mathgroup at smc.vnet.net
- Subject: [mg116531] Re: Fitting Experimental Data
- From: mathilde Favier <fmath at hotmail.fr>
- Date: Fri, 18 Feb 2011 04:36:29 -0500 (EST)
Hi Everybody, Thank you very much for your help but it seems like I've found the solution. The Fit I am looking for is working. I made a really bad mistake. I removed the points of the Top of my curve, and tried to find a fit like a Gaussian with the remained points. Actually it worked, I just didn't gave enought points to replot the curve with its top. Nonetheless I have a lot to do now and all your advices were really helpfull. thank you everybody Have a nice weekend Mathilde FAVIER MathildeTel: + 33 (0)6 35 29 36 96fmath at hotmail.fr > Date: Wed, 16 Feb 2011 10:17:29 -0600 > From: danl at wolfram.com > To: fmath at hotmail.fr > Subject: Re: [mg116433] Fitting Experimental Data > > mathilde Favier wrote: > > Hi Daniel, > > > > First thank you for you answer: > > I am not sure you well understood my trouble. > > > > I am only fitting the Y values as ''dataleftlowband''. The X values are > > points spaced by one. > > > > To reexplain my trouble, I am trying to Fit a curve which looks like an > > asymetric Gaussian only with the rising and falling edge because I had > > to remove the top of my plot which was full of picks. > > I want to reconstitute the top of my curve. > > I am manually removing the picks using a threshold. > > > > > > PS: I have 2 asymetric Gaussian given by my Data, the Goal is to Find a > > fit for them separatly. > > > > Are those explanation more clear? > > > > I am enclosing the problem with all the plots in a PDF file that way you > > will more see what I am talking about. > > > > Thank you > > > > Mathilde* > > * > > Okay, I see what you have now. Some people already gave what appear to > be reasonable suggestions. One is to leave the top parts in and let Fit > work on the full data set. A second one it to smooth the top parts and > Fit to the revised data. Most people think the first is a better idea. > > Daniel >