| Author |
 Topic  |
|
|
islan
Switzerland
6 Posts |
 Posted - 10/14/2013 : 10:46:17 AM
|
Origin Ver. and Service Release (Select Help-->About Origin): 8.5.1G
Operating System: Windows 7, 64-bit
Hey folks!
I tried to built a function by my own but it won't work. 
I followed the instructions in the Tutorial. And everything seemed to be fine until I tested it. Then nothing happend.
May someone tell me how I can upload my example and then I would be glad for any help or hints.
Ursina
|
|
|
Hideo Fujii
USA
1582 Posts |
Posted - 10/14/2013 : 5:57:38 PM
|
Hi Ursina,
In the Fitting Function Builder, in the 4th panel to define the function form, have you tried to press the "Runner" button to do the quick-check of the function output with the given sample X value?
Often, very simple mistakes like unmatched parentheses, etc. caused the function unworkable.
Just my first guess.
--Hideo Fujii
OriginLab |
 |
|
|
islan
Switzerland
6 Posts |
Posted - 10/15/2013 : 05:45:10 AM
|
Hi Hideo
thanks for the hint. I realized that I forgot to iniziallize the parameters 
But now after the parameters are initiallized it does it wrong. For some parameters I get 0. (offset = 0, mu = 0, w1 = 0, w2 = 0) And I don't understand that.
http://www.originlab.com/ftp/forum_and_kbase/Images/doubleGauss.txt
Do you have any idea?
Ursina |
|
|
|
Hideo Fujii
USA
1582 Posts |
Posted - 10/15/2013 : 6:05:49 PM
|
Hi Ursina,
> I get 0. (offset = 0, mu = 0, w1 = 0, w2 = 0)
It seems that the term, e.g., -(x-xc)^2/w2^2 in your function would cause 0-divide error.
Helps?
--Hideo Fujii
OriginLab |
|
|
|
islan
Switzerland
6 Posts |
Posted - 10/16/2013 : 09:03:39 AM
|
Hi Hideo
yes, I understand the problem of the 0-divide. But why are those (offset = 0, mu = 0, w1 = 0, w2 = 0) parameters zero?
And how do I have to change my fitting function to be able fitting more than one peak at once?
Thanks :)
|
|
|
| |
Topic |
|
User built fitting function does not work!