LKSunny wrote:
> i know it can make simple function, if have Statistics knowledge...

ah so you can read a page and therefore determine it's simple even though
you have no 'Statistics knowledge' - brilliant deduction.

you have 3 choices (given that your to stubborn to ask the sys admin to install
the stats extention):

1. get some 'Statistics knowledge'
2. find a statistics/maths forum/mailinglist
3. pray someone with the patience to grok your question has
such a function lying around and is willing to share.

have !! a !! very !! nice !! day !!

>
> reference:
> http://en.wikipedia.org/wiki/Harmonic_Mean
>
> "Jochem Maas" <jochem@iamjochem.com>
> ???????:47628FED.3080701@iamjochem.com...
>> LKSunny wrote:
>>> i know stats_harmonic_mean(), but i am not server admin, i can't install
>>> PECL, so i need make it by manual, but i have't Statistics knowledge, any
>>> one can help me ? thank you very much !!
>> I doubt anyone is going to write a php version of that function for you.
>>
>> given that you are not the server admin then someone else must be, go to
>> that person and ask them to run the relevant pecl command:
>>
>> pecl install stats
>>
>> if they won't get another hoster. regardless you can still develop with
>> that extension
>> on your local machine.
>>
>> If you really need such a function/extension then you should be
>> able to convince the client that it's less effort to find suitable hosting
>> than it
>> is to waste time reinventing a, potentially complex, wheel.
>>
>