Dear Monks,
While using GD::Graph::bars I'm trying to create a chart showing values per a certain calendardate. My current solution gives a result. However I would like to show zero values for calendardates that are not in my data. Is there a certain option for this?
Thanks for any reply.
Gert
#!/usr/bin/perl -w
use strict;
use diagnostics;
use Data::Table;
use GD::Graph::bars;
my $table =
new Data::Table( [ [ 20070410, 20070415, 20070417 ], [ 10, 20, 15 ]
+],
[ 'A', '+B' ], 1 );
print $table->html;
for my $graph ( GD::Graph::bars->new( 700, 150 ) ) {
$graph->set(
'y_number_format' => '%d',
transparent => 0,
values_vertical => 1,
show_values => 1,
);
$graph->set( 'x_labels_vertical' => 1 );
my $gd = $graph->plot( $table->colRefs( [ 0, 1 ] ) );
open( IMG, ">voorraad.png" ) or die $!;
binmode IMG;
print IMG $gd->png;
close IMG;
}
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: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.