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
 Lognormal distribution fit
 New Topic  Reply to Topic
 Printer Friendly
Author Previous Topic Topic Next Topic Lock Topic Edit Topic Delete Topic New Topic Reply to Topic

joliendeboer

Netherlands
2 Posts

Posted - 03/11/2024 :  09:51:44 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Hi all,

When I add the distribution curve to my lognormal distributed data and scale it to its maximum, the fit seems shifted.
What can I do about it?





JDB

Edited by - joliendeboer on 03/11/2024 09:53:16 AM

YimingChen

1594 Posts

Posted - 03/11/2024 :  2:13:39 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
If you'd like to plot the lognormal fitted curve with log-scale x axis, please transform the original data to ln(x) first, and run a normal distributed fit on the transformed data. Otherwise the curve will shift to left by the amount of sigma^2.

James
Go to Top of Page

joliendeboer

Netherlands
2 Posts

Posted - 03/12/2024 :  2:50:52 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Thank you!

JDB
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