> -----Original Message-----
> From: Postman Pat [mailto:[EMAIL PROTECTED]]
> Sent: Monday, June 24, 2002 2:46 AM
> To: [EMAIL PROTECTED]
> Subject: sorting a hash by value.
>
>
> Greetings,
> I would like to sort a hash by value. The hash values are
> numbers. I would
> like to sort this by desceding order. How would I do this?
"sort a hash" is a bit of a non-sequiter. If you want a sorted
list of values, it's a simple matter of:
@list = sort { $b <=> $a } values %myhash;
However, if you really want a list of keys, sorted by the
corresponding value (descending numerically), you need:
@list = sort { $myhash{$b} <=> $myhash{$a} } keys %myhash;
> I have searched
> and found nothing on it. I have found lots on sorting by key
> though...
Hmm, you're looking in the wrong place. The simple command:
perldoc -q sort
Turns up this article:
How do I sort a hash (optionally by value instead of key)?
Which contains an example of exactly your problem.
--
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
