Re: Middle Number
| From: | Stephen | Date: | Sun, 08 Dec 2002 00:05:57 +0000 |
| Subject: | Re: Middle Number | ||
| References: | 1 2 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-127403@lists.php.net to get a copy of this message | ||
Wouldn't this only work for an even ammount of numbers? Like 1, 2, 3, 4 has
4 numbers...
----- Original Message -----
From: "Rick Widmer" <php3@developersdesk.com>
Newsgroups: php.general
To: "Stephen" <webmaster@melchior.us>; "PHP List"
<php-general@lists.php.net>
Sent: Friday, December 06, 2002 10:59 PM
Subject: Re: [PHP] Middle Number
> At 09:45 PM 12/6/02 -0500, Stephen wrote:
> >How can you find the meadian (or middle number) of a list of numbers? If
> >there is an even amount of numbers, how would I still find it?
>
>
> load the list into an array, in numeric order...
>
> then:
>
> $List = array( 1,2,3,4,5,6 );
>
> $Middle = ( count( $List ) - 1 ) / 2;
>
> $median = ( $List[ floor( $Middle ) ] + $List[ ceil( $Middle ) ] ) / 2;
>