Re: how to "Harmonic Mean" manual
| From: | Per Jessen | Date: | Fri, 14 Dec 2007 17:30:54 +0000 |
| Subject: | Re: how to "Harmonic Mean" manual | ||
| References: | 1 2 3 4 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-265899@lists.php.net to get a copy of this message | ||
Per Jessen wrote:
> I don't think you need to know much about statistics - AFAIK, the
> harmonic mean of a group of numbers is simply the reciprocal of
> the 'normal' mean:
>
> harmonic_mean(3,4,5,6) = 1/mean(3,4,5,6)
Ignore that.
/Per Jessen, Zürich