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 Linear fittting selected data in plot		  New Topic  Reply to Topic
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Xaime94

Poland
7 Posts
Posted - 05/22/2018 :  09:53:28 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
I got a serious problem with fitting selected data in plot - the data in X isn't sorted and if I want to fit the points ranging ,let's say, from 300 to 1200 [in values], then Origin fits the data ranging from specific row to another - in that case I assume that not all points in range (300,1200) are fitted.


Edited by - Xaime94 on 05/22/2018 09:54:56 AM

JacquelineHe

287 Posts
Posted - 05/23/2018 :  03:03:39 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi,

I am afraid to tell you that Linear Fit function does not support to fit the discontinuous data segment.

If you do not want to sort the datasets, I suggest you can try the mask tool to mask the data range you do not want to fit.

Refer to this help page about masking data in Graphs:
https://www.originlab.com/doc/User-Guide/Data-Analysis#Data_Masking

You can press "Space" key to change to "Mask data points by rectangular region”, then it could easy to select the range not need in the fitting.

Then when fitting the whole range of the graph, it will exclude the masked points.

Thanks
Jacqueline
OriginLab
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Xaime94

Poland
7 Posts
Posted - 05/23/2018 :  2:50:55 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi JacquelineHe,

Thank you
Edited by - Xaime94 on 05/23/2018 3:50:58 PM
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