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 how to do the non-liner curve fitting by Origin7.5		  New Topic  Reply to Topic
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vilinbaobao

1 Posts
Posted - 01/02/2010 :  08:45:03 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Hello
I'm glad to here to look for your help.
I met some problems when I do the non-liner curve-fitting by Origin7.5
The process I do the non-liner curve fitting is as follows:
1. put the data
2. to draw scatter graph using my raw data
3. to fit my data using the user-defined function of my own
4. press the "execute"button
5. press the "100lter" repeatly till the value of parameters staying the same
6. my curve fitting is down.

If this method is right?
How to confirm if the non-liner curve fitting is right?
That confuse me a lot, hoping to listen your advice
Thank you very much
vilin

larry_lan

China
Posts
Posted - 01/05/2010 :  04:01:33 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi:

There are some movies here, but that's for Origin 8. Maybe you can download the demo version and try?

Thanks
Larry
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