Beefy Boxes and Bandwidth Generously Provided by pair Networks
"be consistent"
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??

Also, you might consider another type of data-structure, such as a hash, keyed by the value of the gene-string, whose value is the number of times that this particular string occurs.   This is remarkably easy to do in Perl:

my $h={};
$h->{ $_ } ++ foreach (@my_array);

After initializing $h to an empty hashref, we loop over all elements in @my_array (each element being briefly represented by the variable $_), and increment the value of the hash-entry under that key.   Welcome to Perl’s “auto-vivication” feature:   each hash-element is magically created as necessary, and since you are “incrementing” it, the initial value automagically starts at zero.

This representation is functionally-equivalent to an array of discrete strings, but much faster to process.


In reply to Re: How to I check if a value is present in an array? by Anonymous Monk
in thread How to I check if a value is present in an array? by rocketperl

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 about the Monastery: (9)
    As of 2014-11-27 10:49 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      My preferred Perl binaries come from:














      Results (183 votes), past polls