Beefy Boxes and Bandwidth Generously Provided by pair Networks
good chemistry is complicated,
and a little bit messy -LW
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??
I think that it is easier to use the indexes() function in List::MoreUtils.

the snippet "indexes{/^1$/}@colData" yields the index numbers of elements in @colData that contains just a "1". This is an XS module like List::Util's and runs very fast. Getting the textual name is a simple array look-up. These terms are pushed into a HashOfArray. So, 2 lines of code that do a lot of work!

#!/usr/bin/perl -w use strict; use List::MoreUtils qw(indexes); use Data::Dumper; my %family_data; my @dataNames = qw( lacM taba mori glyB gly4); <DATA>; #skip the header line while (<DATA>) { my ($family, @colData) = split; push @{$family_data{$family}}, map{$dataNames[$_]}indexes{/^1$/}@colData; } print Dumper(\%family_data); =prints $VAR1 = { 'OG_2' => [ 'taba', 'glyB' ], 'OG_1' => [ 'lacM', 'mori' ] }; =cut __DATA__ Family lacM taba mori glyB gly4 OG_1 1 0 1 0 0 OG_2 0 1 0 1 0
Of course map{$dataNames[$_]}indexes{/^1$/}@colData;
could be map{$dataNames[$_]}indexes{$_}@colData;
but I thought the regex was less confusing albeit a bit slower.
either way is plausible, take your pick.

In reply to Re: Getting indices of the same value that occurs multiple times in an array... by Marshall
in thread Getting indices of the same value that occurs multiple times in an array... by reubs85

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!
  • 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, 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, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • Outside of code tags, you may need to use entities for some characters:
            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.
  • Log In?
    Username:
    Password:

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

    How do I use this? | Other CB clients
    Other Users?
    Others musing on the Monastery: (6)
    As of 2014-12-21 20:26 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      Is guessing a good strategy for surviving in the IT business?





      Results (107 votes), past polls