#!/usr/bin/perl -w
use strict;
use Chart::Gnuplot;
# Create the chart object
my $chart = Chart::Gnuplot->new(
output => "lineStyle_1.png",
);
# The color of line and points are changed together
my $color = Chart::Gnuplot::DataSet->new(
func => "cos(x)",
style => "linespoints",
color => "violet", # can be color name or RGB value
);
# Plot the graph
$chart->plot2d($color);