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Re: Multiple Y axes with different scales

by poj (Abbot)
on Mar 27, 2018 at 07:24 UTC ( [id://1211824]=note: print w/replies, xml ) Need Help??


in reply to Multiple Y axes with different scales

If you are using GD::Graph then see use_axis=>[1,2] and two_axes=>1 in section "Options for graphs with axes".

#!/usr/bin/perl use strict; use GD::Graph::lines; my $graph = GD::Graph::lines->new(400, 300); $graph->set( two_axes => 1, use_axis => [1,2], x_label => 'X Label', y1_label => 'Y1 label', y2_label => 'Y2 label', title => 'Some simple graph', ) or die $graph->error; my @data = ([1,2,3,4,5], [2,3,4,5,6], [17,14,18,16,12] ); my $gd = $graph->plot(\@data) or die $graph->error; open IMG, '>','file.png' or die $!; binmode IMG; print IMG $gd->png;
poj

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