Hi there!

Just a few mistakes: 

<FILE>; # ignore first line
my @words = (A, C, G, T); #letters to search
my @file = do {local $/; split (//, <FILE>); }; #split each letter int
+o an array

foreach $file (@file){
    foreach $words (@words){
        if ($file eq $words){
             $word_list{$file}++;
        }
    }
}
@pairs = sort {$a->[1] <=> $b->[1]}
         map {[ $_ => $word_list{$_}]}
         keys %word_list;

print "word $_->[0] = $_->[1]\n" for @pairs;

[download]


You were only splitting on the first line of the file, and there was a typo on the last line. The code above will hopefully work as you intended.

In reply to Re: Re: Re: counting occurances by qmole
in thread counting occurances by imlou

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.