Thank you so much for the reply. You are right and maybe it would be better if
it is mentioned in docs because in some other ml libraries e.g. sklearn, it
uses population variance.
> 2022年9月30日 上午10:49，Sean Owen 写道：
>
> This is sample variance, not population (i.e. divide by n-1, not n). I
This is sample variance, not population (i.e. divide by n-1, not n). I
think that's justified as the data are notionally a sample from a
population.
On Thu, Sep 29, 2022 at 9:21 PM 姜鑫 wrote:
> Hi folks,
>
> Has anyone used VarianceThresholdSelector refer to
>
