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Haifa

Canada
2 Posts
Posted - 01/29/2016 :  10:56:08 PM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
I have Data ( x and y) gave my Ellipse Shape how I can fit this data with Ellipse equation:
(x-h)^2/a^2 +(y-k)^2/b^2 =1

AmandaLu

439 Posts
Posted - 02/01/2016 :  01:21:52 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi Haifa,

We can fit Ellipse with implicit fitting function.

1. Select menu Analysis:Fitting:Nonlinear Implicit Curve Fit to open the dialog.
2. Select "Ellipse" for Function.

Thanks,
Amanda
OriginLab Technical Service
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Haifa

Canada
2 Posts
Posted - 02/01/2016 :  12:19:30 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi Amanda
I cannot find the Ellipse in Nonlinear Curve Fitting dialog

We can fit Ellipse with implicit fitting function.

1. Select menu Analysis:Fitting:Nonlinear Implicit Curve Fit to open the dialog.
2. Select "Ellipse" for Function.

Thanks,
Amanda
OriginLab Technical Service
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snowli

USA
1386 Posts
Posted - 02/01/2016 :  12:56:08 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hello,

We added Implicit fit since Origin 9.0. And it's a Pro only feature.

If you have older version or regular Origin, you will not see the menu.

This is the Key Features by Version table
http://www.originlab.com/index.aspx?go=Products/Origin&PID=1029


Thanks, Snow
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