Timeline for Can RMSE and MAE have the same value?
Current License: CC BY-SA 4.0
15 events
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| Aug 27, 2019 at 4:56 | comment | added | mkt | @DilipSarwate All excellent points, thanks again. | |
| Aug 26, 2019 at 22:04 | comment | added | Dilip Sarwate | A couple of additional embellishments to your answer: (i) $n$ must be even (say $n=2k$) and (ii) exactly $k$ residuals must have value $+\sigma$ and exactly $k$ residuals must have value $-\sigma$, which of course means that all residuals have absolute value $\sigma$ as you state, but (ii) ensures that the residuals sum to $0$ as they must. The residuals are the deviations from the mean and so must sum to zero. | |
| Aug 26, 2019 at 8:57 | history | edited | mkt | CC BY-SA 4.0 |
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| Aug 25, 2019 at 14:35 | vote | accept | Perl Del Rey | ||
| Aug 25, 2019 at 9:41 | history | edited | mkt | CC BY-SA 4.0 |
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| Aug 25, 2019 at 9:26 | vote | accept | Perl Del Rey | ||
| Aug 25, 2019 at 14:35 | |||||
| Aug 25, 2019 at 9:14 | history | edited | mkt | CC BY-SA 4.0 |
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| Aug 25, 2019 at 8:56 | vote | accept | Perl Del Rey | ||
| Aug 25, 2019 at 9:26 | |||||
| Aug 25, 2019 at 4:49 | comment | added | mkt | @DilipSarwate Thanks for the input | |
| Aug 25, 2019 at 4:48 | history | edited | mkt | CC BY-SA 4.0 |
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| Aug 25, 2019 at 0:41 | comment | added | user20160 | @mkt Thanks for the kind words. Your answer is correct and concise (+1) | |
| Aug 24, 2019 at 18:42 | comment | added | mkt | @DilipSarwate I was pondering this when user20160 added a much better answer that covers it in more detail than I could. | |
| Aug 24, 2019 at 17:56 | comment | added | Dilip Sarwate | Could you give an example of the other scenarios that you envision? I mean an example other than a scalar multiple (when all the residuals are $\pm \sigma$ instead of $\pm 1$) of the example above. | |
| Aug 24, 2019 at 14:07 | history | edited | mkt | CC BY-SA 4.0 |
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| Aug 24, 2019 at 13:09 | history | answered | mkt | CC BY-SA 4.0 |