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Why do we square the errors in OLS? Why not use true values?
| Jared Baumeister | 08/26/26 |
| Karlstack | 08/26/26 |
| Jared Baumeister | 08/26/26 |
| coalition of rabbis | 08/26/26 |
| Jared Baumeister | 08/26/26 |
| Jared Baumeister | 08/26/26 |
| Jared Baumeister | 08/26/26 |
Poast new message in this thread
Date: August 26th, 2026 12:12 AM Author: Jared Baumeister go ahead and Google it and you'll never get a straight answer. Ask Claude Fable and you'll get wrong answers only, I bet (http://www.autoadmit.com/thread.php?thread_id=5897341&forum_id=2most#50093497) |
Date: August 26th, 2026 12:14 AM Author: Karlstack (first year LRM econometrics student) (http://www.autoadmit.com/thread.php?thread_id=5897341&forum_id=2most#50093500) |
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Date: August 26th, 2026 12:17 AM Author: Jared Baumeister Squaring has a real cost. Because a big error is punished so hard, a single wrong data point can drag the whole line towards itself. One student recorded as 8 hours and 3 marks, by a typo, will bend the line more than the other seven points together.
The absolute version is far more resistant to that, and it has a name, mean absolute error. It is a good choice when your data has outliers you cannot remove. It is used less often mostly because of the corner, and because squared error has clean mathematics behind it.
https://teachyourselfcoding.com/courses/learn-machine-learning-from-first-principles-using-javascript/lesson/why-we-square-the-error/?page_tab=overview |
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Date: August 26th, 2026 12:19 AM Author: coalition of rabbis This is like watching prince tp read high school math books all over again (http://www.autoadmit.com/thread.php?thread_id=5897341&forum_id=2most#50093516) |
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Date: August 26th, 2026 12:20 AM Author: Jared Baumeister I thought it would be an easy question for poasters to answer (http://www.autoadmit.com/thread.php?thread_id=5897341&forum_id=2most#50093518) |
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Date: August 26th, 2026 12:21 AM Author: Jared Baumeister Anyone? (http://www.autoadmit.com/thread.php?thread_id=5897341&forum_id=2most#50093520) |
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Date: August 26th, 2026 12:22 AM Author: Jared Baumeister Just measure at the actual errors. What's wrong with that? Do we really just like to square things because it's easier to work with all positive integers? (http://www.autoadmit.com/thread.php?thread_id=5897341&forum_id=2most#50093523) |