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
 All Forums
 Origin Forum
 Origin Forum
 serious problem during exponential decay fitting

Note: You must be registered in order to post a reply.
To register, click here. Registration is FREE!

Screensize:
UserName:
Password:
Anti-Spam Code:
Format Mode:
Format: BoldItalicizedUnderlineStrikethrough Align LeftCenteredAlign Right Horizontal Rule Insert HyperlinkUpload FileInsert Image Insert CodeInsert QuoteInsert List
   
Message:

* HTML is OFF
* Forum Code is ON
Smilies
Smile [:)] Big Smile [:D] Cool [8D] Blush [:I]
Tongue [:P] Evil [):] Wink [;)] Clown [:o)]
Black Eye [B)] Eight Ball [8] Frown [:(] Shy [8)]
Shocked [:0] Angry [:(!] Dead [xx(] Sleepy [|)]
Kisses [:X] Approve [^] Disapprove [V] Question [?]

 
Check here to subscribe to this topic.
   

T O P I C    R E V I E W
marostyle Posted - 02/18/2008 : 10:35:34 PM
Origin Version (Select Help-->About Origin): Origin pro 7.5
Operating System:windows XP

Hello, all
I have a big problem during exponential decay fitting.
I carried out exponential decay fit, but only linear fit line presented. However other exponenetial fit function has no problem.
I think datas are not bad.
It seems may system error but I don't know why this problem happnen.
please help me.

fit error image attached bottom.

thanks a lot.

2   L A T E S T    R E P L I E S    (Newest First)
marostyle Posted - 02/19/2008 : 05:34:39 AM
Thank you for your answer.

I confused between ExP2PMod2 and ExpDec2 for an instant.
(although other data, not this sample)

Thank you, and sorry for my stupid mistake.
Fay_Guo Posted - 02/19/2008 : 03:15:28 AM
Hi,

From your attached image, I see there are only 5 values in your dataset. While there are 5 parameters in the function of ExpDec2, so some values cann't be computed.
Could you add your sample size and do exponential decay fitting again?

If you have any problems, please feel free to contact with us.

Thanks
Fay
Originlab Technical Service

The Origin Forum © 2020 Originlab Corporation Go To Top Of Page
Snitz Forums 2000