The Origin Forum
File Exchange
Try Origin for Free
The Origin Forum
Home | Profile | Register | Active Topics | Members | Search | FAQ | Send File to Tech support
Username:
 Password:
Save Password
Forgot your Password? | Admin Options

 All Forums
 Origin Forum
 Origin Forum
 Hoe to nonlinear fitting		  New Topic  Reply to Topic
 Printer Friendly
Author Previous Topic Topic Next Topic Lock Topic Edit Topic Delete Topic New Topic Reply to Topic

sxy5306

China
Posts
Posted - 08/23/2007 :  02:30:57 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin Version (Select Help-->About Origin):
Operating System:xp-sp2

I want to fit the temperature dependence of fluroscence intenstiy according to the formula I(T)=I0(1+Aexp(-E/KT)) , where I(T) is the fluroscence intensity, I0 is the intensity at zero temperature, E and K are constant, and T is temperature, How to realize his formula fitting?
Thanks very much!

Mike Buess

USA
3037 Posts
Posted - 08/23/2007 :  11:22:38 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
1. Open the Advanced Fitting Tool.
2. If you see a More button click it.
3. Select Function> New on the fitter's menu.
4. Create the function like this...



5. Select Scripts> Parameter Initialization on the fitter's menu.
6. Define k, E and B=E/k in the Constants box. (Of course k and E must have the proper values for your units.)



7. Select Function> Save and try it out.

Mike Buess
Origin WebRing Member
Go to Top of Page
  Previous Topic Topic Next Topic Lock Topic Edit Topic Delete Topic New Topic Reply to Topic
 New Topic  Reply to Topic
 Printer Friendly
Jump To:
The Origin Forum © 2020 Originlab Corporation Go To Top Of Page
Snitz Forums 2000