Dear monks,

this is likely basic stuff and most probably just my searching skills eluding me, so please bear with me. I have 3 arrays. One of these arrays has simple integers and I wish to sort that array descendingly. So far so good. However, the other 2 arrays need to be sorted in exactly the same manner as the first array. In other words, if item 116 moves to 211, the same needs to happen for item 116 in the other 2 arrays. I know that I should likely turn to map for this, but even after going through the documentation a number of times I can't seem to figure out exactly how. Another method I thought of was to create a hash based on the sort where the keys are the old positions and the values the new ones, possibly combining this approach with map(perhaps that's the whole idea of map...beats me). Any insights?


Remember rule one...

In reply to sorting multiple arrays on the criteria of one array by Forsaken

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.