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
 Fit Not Converging		  New Topic  Reply to Topic
 Printer Friendly
Author Previous Topic Topic Next Topic Lock Topic Edit Topic Delete Topic New Topic Reply to Topic

Harveyb

Australia
1 Posts
Posted - 03/30/2017 :  9:21:07 PM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Using the equation P=P1*(1-exp((-P2*x)/P1))*exp((-P3*x)/P1)
where:
P1= Linear electron flow maximum value (12.35)
P2= Linear slope of linear part (First 4 data points)(0.07365)
P3= Linear slope of photo inhibition (Last 3 Data points)(0.00257)

Getting message that fit is not converging even when weighting is off

Shirley_GZ

China
Posts
Posted - 03/31/2017 :  01:21:05 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
HI Harveyb,

We have released an app to provide some plant physiology fitting function. See, http://www.originlab.com/fileExchange/details.aspx?fid=155

You can check if the one "RLC" is the function you are looking for and try to do fitting with it.

In addition, I can not see the issue just with the screenshot.

Would you please send us(via:tech@originlab.com) the user defined function file(*.fdf) and the project file(*.opj) to let us check the details if still problem?

http://www.originlab.com/index.aspx?go=Support/SendFilestoSupport Please mention this post in your subsequent message.

Thanks,
Shirley
OriginLab

Originlab Technical Service Team
Edited by - Shirley_GZ on 03/31/2017 01:45:54 AM
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