I am using least square method to find linear equation but getting some problems below. I would like to exclude wrong points before calculating linear line. Is there any idea for this?
2026-04-02 21:12:55.1775164375
Excluding wrong points in least square method
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If you want to remove the "wrong" points from the linear model before fitting it, you first need to define a criterion to decide which points are wrong. Otherwise, you can use several measures of influence such as Cook's distance or studentized residuals, but first you need to fit the entire model.