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 help with extrapolation		  New Topic  Reply to Topic
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namdar

2 Posts
Posted - 08/07/2013 :  6:16:55 PM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Hi I want to extrapolate selected section so that it intersects x axis, can anyone help?

Hideo Fujii

USA
1582 Posts
Posted - 08/07/2013 :  6:38:43 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi,

You can open Interpolate gadget, set the "Fit Limit To" option in Inter../Extrapolate Options tab
to "Inter.../Extrapolate to Full Axis Edge", then move and resize the yellow ROI box so that it
contains the data points you want to contain. See the screenshot below:



Does this work for you?

--Hideo Fujii
OriginLab
Edited by - Hideo Fujii on 08/07/2013 6:39:28 PM
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namdar

2 Posts
Posted - 08/08/2013 :  04:57:46 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi
Thanks, but i'm using version 8 which does not include gadget menu.
could you please give step-by-step instructions?
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greg

USA
1378 Posts
Posted - 08/08/2013 :  12:17:50 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Set you graph's Y From to zero then use the Data Selector tool to mark your region and run Analysis : Mathematics : Interpolate/Extrapolate.
Turn on Auto Preview, Uncheck X Minimum Auto and change your X Minimum values until you get an X axis intercept.
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