Dear Monks, I want to plot a simple graph and have decided to use DBD::Chart::Graph mainly because of the number of colours available and because you can plot scatter graphs.

I have basically copied code from the cpan web-site for this module but I can't get it to work but I don't get errors either. Can anyone spot the problem? Thanks! 

#!/biol/programs/perl580/bin/perl

use DBD::Chart::Plot;

my $img = DBD::Chart::Plot->new();
my @k = ('1','1','3','5');
my @h = ('0.1','0.5','0.4','0.9');
$img->setPoints(\@k, \@h, 'blue line nopoints');
    $img->setOptions (
        title => 'My Graph Title',
        xAxisLabel => 'my X label',
        yAxisLabel => 'my Y label' );
    print $img->plot;

    open (WR,'>plot3.png') or die ("Failed to write file: $!");
    binmode WR;            # for DOSish platforms
    print WR $img->plot();
    close WR;

[download]

Formatting repaired by davido

In reply to DBD::Chart::Plot ?? 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.