| T O P I C R E V I E W |
| fini |
Posted - 10/25/2007 : 4:55:57 PM
I have to do a Gaussian Fit on the left peak in the picture. I use advanced fitting tool, select gaussian function and then choose x date from 500 until 1700. i do same for y data. i take following start values:y0=1300; xc=1200;A=1000; w=200 and i have all on vary. If i then want to fit following error appears:
your fitting function is not generating values. check that your database has values.
if u have a user defined function...
i dont use a use defined function and i surely have values in my dataset. Cause of some transitions between programs all x-values have a >. For example 574>.
COmplete data have 4096 values so i cannot post all data here.
Someone can give an advice?
Edited by - fini on 10/25/2007 5:07:01 PM |
| 6 L A T E S T R E P L I E S (Newest First) |
| fini |
Posted - 10/26/2007 : 09:46:08 AM
i did what you said and it works fine. gaussian fit works too. very thx for the help
Can you explain me what i have to change in your script to let it work on an other column?
ah got it. easy going.
Edited by - fini on 10/26/2007 09:47:23 AM
Edited by - fini on 10/26/2007 09:55:20 AM
Edited by - fini on 10/26/2007 09:55:48 AM |
| Mike Buess |
Posted - 10/26/2007 : 09:05:55 AM
Just select all lines of code as shown below and press Enter.
Mike Buess
Origin WebRing Member
Edited by - Mike Buess on 10/26/2007 09:10:12 AM |
| fini |
Posted - 10/26/2007 : 08:59:05 AM
i copied your script in the script window, but i dont know how to execute it. theres an option named script execution but nothing happens if i click it. |
| fini |
Posted - 10/26/2007 : 08:50:14 AM
i have sent an e mail with the data. im looking for your help. i have to do some more of these gaussian fits on similar data. |
| Mike Buess |
Posted - 10/26/2007 : 08:41:17 AM
Origin interprets 574> as a missing value so you must get rid of all > before you plot. This LabTalk script removes the last character from column 1.
for(i=1;i<=wks.maxrows;i++)
{
%A=cell(i,1)$; // get cell (row=i, col=1)as string
%A=%[%A,%[%A]]; // strip last character which is >
cell(i,1)=%A; // assign to cell
};
Mike Buess
Origin WebRing Member |
| larry_lan |
Posted - 10/25/2007 : 9:54:59 PM
Hi Fini:
To restrict the input data range, you can
1> Select the data range before bringing up the fitting dialog page .
2> Select rows on the following
If it doesn't work, please send your data to tech@originlab.com and we will have a try.
Thanks
Larry
OriginLab Technical Services |
