Beefy Boxes and Bandwidth Generously Provided by pair Networks
Syntactic Confectionery Delight
 
PerlMonks  

Re: how to loop through many arrays

by wind (Priest)
on Jun 19, 2011 at 02:54 UTC ( #910376=note: print w/ replies, xml ) Need Help??


in reply to how to loop through many arrays

My only advice is to just do it. You can compile the arrays into a list of arrays, or you could add them to a hash where you give each a name. Either way, just iterate on each array and use List::Util->reduce to determine the position of the max element.

use List::Util qw(reduce); use strict; use warnings; my @array1 = (1,2,3,4,8); my @array2 = (1,4,2,4,5); my @array3 = (1,6,1,7,5); for my $array (\@array1, \@array2, \@array3) { my $max_pos = reduce {$array->[$b] > $array->[$a] ? $b : $a} keys +@$array; print "Max is $array->[$max_pos] at position $max_pos\n"; } =prints Max is 8 at position 4 Max is 5 at position 4 Max is 7 at position 3 =cut


Comment on Re: how to loop through many arrays
Download Code
Replies are listed 'Best First'.
Re^2: how to loop through many arrays
by david_lyon (Sexton) on Jun 19, 2011 at 06:46 UTC
    thanks for your help much appreciated!

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://910376]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others wandering the Monastery: (12)
As of 2015-07-30 15:41 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









    Results (272 votes), past polls