Dave,
Thanks very much, it worked a treat except where there was a blank instead of a
numeric, so I must tidy up my data first!
I still might put it into mySQL though, there is so much more you can do when
it is in a database.
Regards,
Mark
-----Original Message-----
From: redsquirreldesign [SMTP:[EMAIL PROTECTED]]
Sent: 26 June 2001 14:50
To: Bedish, Mark; beginners
Cc: redsquirreldesign
Subject: Re: sort by value?
Mark Bedish wrote:
> Dave,
>
> >It looks to me that your hash %ch is empty. Your
> >foreach will never begin because there is no list
> to
> >iterate. You need to assign keys & values to %ch.
>
> >When it is time to sort numerically, use the
> spaceship
> >operator <=>. So it would look like this:
>
> >sort { $ch{1} <=> $ch{2} }
>
> No I have got the data, I didnt show the full
> example. My tab delimited
> file is something like this:
>
> Complete music of Ockeghem 380
> Bach Cantatas bwv140 etc 113
> Achirana Marshall Trio 48
> Hello Children 145
[snip]
Mark,
OK, I understand. Using the data you provided above,
this code worked for me:
------------------
my (%ch, @fields);
open(FILE, "data");
while (<FILE>) {
chomp;
@fields = split(/\t/);
$ch{$fields[0]} = $fields[1];
}
close FILE;
for (sort { $ch{$a} <=> $ch{$b} } keys %ch) {
print "$_: $ch{$_}\n";
}
=====
Dave Hoover
"Twice blessed is help unlooked for." --Tolkien
http://www.redsquirreldesign.com/dave
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