Beefy Boxes and Bandwidth Generously Provided by pair Networks
more useful options
 
PerlMonks  

comment on

( [id://3333]=superdoc: print w/replies, xml ) Need Help??

First of all, the question is whether x or y can be assumed to have unique values. Either of the two can then be used as keys to a hash to store the association of the two arrays. In this case, the task is straightforward.

In the general case, one needs to introduce the position as the key to a hash that stores x and y. One can then sort the keys with respect to y. Here is how it could look like:

use strict; use warnings; # initial data my @x = qw/c d e f k l m n/; my @y = qw/4 6 5 2 9 7 8 3/; # store in hash to keep association between x and y after sorting my %data; for my $i (0..@x-1) { $data{$i}{x} = $x[$i]; # store x corresponding to position $i $data{$i}{y} = $y[$i]; # store y corresponding to position $i } # sort positions with respect to y my @sorted = sort { $data{$a}{y} <=> $data{$b}{y} } keys %data; print "Sorted data:\n"; for my $i (@sorted) { print "$data{$i}{y} corresponds to $data{$i}{x} at position $i +\n"; }

To print the highest and lowest 5 should now be simple...




  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or How to display code and escape characters are good places to start.
Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Chatterbox?
and the web crawler heard nothing...

How do I use this?Last hourOther CB clients
Other Users?
Others cooling their heels in the Monastery: (5)
As of 2024-03-19 05:45 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found