| T O P I C R E V I E W |
| nesgio |
Posted - 10/25/2023 : 08:59:17 AM
OriginPro 2022 Service Release 9.9.0.225
Operating System: Windows 10 Enterprise Build 19045
Hello,
Do you know how to perform a weighted linear regression such as 1/x, 1/x^2, 1/y,... on OriginPro 2022? I didn't found the option while creating a new graph.
Thank you!
Gio |
| 5 L A T E S T R E P L I E S (Newest First) |
| YimingChen |
Posted - 10/26/2023 : 08:57:53 AM
Please watch the attached video showing the steps to perform linear fit on the dataset using 1/x value as the weights.
https://my.originlab.com/ftp/forum_and_kbase/Images/LinearFitXErr.zip
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| nesgio |
Posted - 10/26/2023 : 04:13:43 AM
Thanks for the reply. I follow it but it doesn't work (see picture below)
I set a column with values "1/x". Should I do something different?
I also tried the "Speedy Fit" feature but still the weighting option is not available (see below).
Gio |
| YimingChen |
Posted - 10/25/2023 : 11:32:30 AM
Please check this FAQ page on fitting with X errors
https://www.originlab.com/doc/Quick-Help/NLFit-X-Err |
| nesgio |
Posted - 10/25/2023 : 10:46:40 AM
Hi James,
Thank you for your answer. Should I set a specific column like the image below to perform the direct weighting?
When I perform the linear regression there is no option to set the X error (and then change it as weighting). See picture below
Best,
Gio |
| YimingChen |
Posted - 10/25/2023 : 09:24:58 AM
Please refer to this page for different weight options in curve fitting.Thanks.
https://www.originlab.com/doc/en/Origin-Help/FIt-with-Err-Weight
James |
