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 how to change number of point when fitting a curve		  New Topic  Reply to Topic
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chzhu9502

1 Posts
Posted - 10/21/2009 :  1:22:09 PM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin Ver. and Service Release (Select Help-->About Origin):
Operating System:windows xp

Dear ALL,

Really need some help.

I am trying to fit a curve (lorentzian curve) with 200 points (for example).

and I am using the fit-multipeaks option in Analysis.

The question is what I need to do so that the fitted curve can have more points than the raw data has (for example, 1000 points)?

I have access to Origin. 6, 7 or 8.


Thanks a lot.

easwar

USA
1965 Posts
Posted - 10/21/2009 :  5:42:19 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi,

In version 8:

1> Open the fitter dialog (if you already did the fit, click on the lock in the output and select Change Parameters to re-open dialog).
2> Click on Settings Tab
3> Click on Fitted Curves
4> On the right side, expand tree to show Fitted Curves Plot
5> Look at X Data Type sub branch

This branch has controls including setting fit curve to same as data points, custom settings with user-specified number of points, custom range for begin and end x values etc.

Easwar
OriginLab
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