Re:The Central Limit Theorem and Its Misuse
by eanzenberg on Thursday January 02, 2020 @03:12PM
(#21939299)
No, a t-test makes no assumptions that the underlying data is Gaussian. Again, most ml is done on raw data. If the raw feature is bimodal then the raw data is bimodal.
[ Parent
| on HN ]
Re:The Central Limit Theorem and Its Misuse
by QuesnayJr on Friday January 03, 2020 @06:33AM
(#21945022)
I can't figure out if you are agreeing or disagreeing with me. If you do non-penalized regression on raw data, then the t statstic will be approximately Gaussian, even if the raw data is bimodal. This follows from the CLT.
Re:The Central Limit Theorem and Its Misuse
by eanzenberg on Saturday January 04, 2020 @08:29PM
(#21958966)
What is the standard deviation of a bimodal distribution with modes at 0 and inf? Is that a meaningful stat?