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 Problem with Linear Fitting on OriginPro 8.0
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V.P

Poland
2 Posts

Posted - 11/19/2009 :  08:05:30 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin Ver. and Service Release: OriginPro 8.0 SR6
Operating System:XP 32Bit

I have problem with OriginPro v8.0.
When I tried fit linear to data as logarithmic scale on a plot, my line in plot isnt linear.
This problem isnt exist in old version (7.5 SR3-SR6).



In enclosed print screen you can see:
line red - OriginPro v7.5
line blue - OriginPro v8.0

Can I fit my data sach as in old version ??

Sorry my English is not perfect.

greg

USA
1379 Posts

Posted - 11/19/2009 :  12:55:23 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
What you are looking for is Apparent Linear Fit.

Click the green operation lock in the upper left of your graph and choose Change Parameters.

In the Fit Options branch of the Linear Fit dialog check the 'Apparent Fit' box.

Click the right arrow button in the upper right of the dialog.

Choose Save As..

Type Apparent Linear Fit

Click OK

Click OK

The fit will complete and the next time you use Linear Fit, this method will be available in the Linear Fit flyout and in the most recently used analysis.
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V.P

Poland
2 Posts

Posted - 11/20/2009 :  05:41:49 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Thanks you for quick answer.

Edited by - V.P on 11/20/2009 05:45:20 AM
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