| Author |
 Topic  |
|
|
GaussianFit
38 Posts |
 Posted - 08/11/2008 : 2:57:40 PM
|
Hello,
I'm a new user of Origin software and I'm still getting familiar with it. I've come up with a question about how to use Origin 8 to fit a bunch of data curves: Right now I'm fitting each curve manually using a user-defined nonliner fitting function. The initial parameters and the data range are the same for each curve. This is fine for now but I have to repeat this operation on hundreds of curves and it's really a tedious job to do it one by one. Is there a simple way to perform such data analysis function automatically? Any idea would be really appreciated! Thanks a lot first.
Origin Version: Pro 8 SR2
Operating system: Windows XP Professional SP2 |
|
|
cpyang
USA
1406 Posts |
|
|
Hideo Fujii
USA
1582 Posts |
Posted - 08/12/2008 : 11:51:49 AM
|
Hi,
For a meantime, just as an offhand work-around, you may also try Origin8's "Multi-Data Fit Mode":
1) Plot ALL datasets you want to fit such as by using Plot Setup dialog.
2) Using "Selection on All Plots" in the Regional Data Selector, select ALL data plots (click-and-drag diagonally from one corner to another).
3) Start NLFit session, and in the "Data Selection", choose "Independent Fit" in the Multi-Data Fit Mode setting. NLFit fits all datasets at once, and individual fit curves are included in the report sheet in the worksheet.
Hope you can save some time.
--Hideo Fujii
OriginLab Corp.
|
 |
|
|
GaussianFit
38 Posts |
Posted - 08/12/2008 : 1:17:07 PM
|
Hi Hideo,
THANK YOU SO MUCH, this trick works like a charm! It saved my day.
Also thanks cpyang for pointing out Origin 8.1 will have such automation function incorporated, LabTalk should also work but I feel it's a step back since similar job can be done in other programming packages such as matlab.
quote:
Originally posted by Hideo Fujii
Hi,
For a meantime, just as an offhand work-around, you may also try Origin8's "Multi-Data Fit Mode":
1) Plot ALL datasets you want to fit such as by using Plot Setup dialog.
2) Using "Selection on All Plots" in the Regional Data Selector, select ALL data plots (click-and-drag diagonally from one corner to another).
3) Start NLFit session, and in the "Data Selection", choose "Independent Fit" in the Multi-Data Fit Mode setting. NLFit fits all datasets at once, and individual fit curves are included in the report sheet in the worksheet.
Hope you can save some time.
--Hideo Fujii
OriginLab Corp.
|
|
|
| |
Topic |
|
|
|
quesiton on batch process of fitting curves