Sorry for your time or anyone else. The code is the same as on CPAN.org. I just copied it, that why I didn't understand how it work. It seem the code create a .gif file. I do think they should tell how to use the code, as I can't understand the code by just looking at it. 
   use Chart::Pie;

   my $chart = Chart::Pie->new(640,480);

   $chart->set( 'title'   => 'A Day in the Life',
                'x_label' => 'X Axis Label',
                'y_label' => 'Y Axis Label' ,
                'label_values' => 'percent', # tell me percentage of
                                             # each day spent on
                                             # each activity
                'x_ticks'  => 'none',
                'y_ticks'  => 'none',
   );

   $chart->add_dataset( qw(Junk_X_Tick_Label) );
   $chart->add_dataset( qw(8) );
   $chart->add_dataset( qw(8) );
   $chart->add_dataset( qw(2) );
   $chart->add_dataset( qw(6) );


   $chart->set('legend_labels' => [ 'Sleep', 'Work', 'Eat', 'Watch TV'
+ ]);
   $chart->gif('pie.gif');

[download]

In reply to Re^2: teach me Chart::Pie by Anonymous Monk
in thread teach me Chart::Pie by Anonymous Monk

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.