NAME
Chart::GGPlot::Limits - Functions for applying limits to the scales
VERSION
version 0.0009
SYNOPSIS
use Chart::GGPlot qw(:all);
my $plot1 = ggplot(data => $mtcars,
mapping => aes(x => 'mpg', y => 'wt')) +
geom_point() + xlim(15, 20);
# if the larger value comes first, the scale will be reversed
my $plot2 = ggplot(data => $mtcars,
mapping => aes('mpg', 'wt')) +
geom_point() + xlim(20, 15);
# you can leave one value as NA to compute from the range of the data
my $plot3 = ggplot(data => $mtcars,
mapping => aes('mpg', 'wt')) +
geom_point() + xlim(NA, 20);DESCRIPTION
The module provides some functions for specifying limits of a plot. By default, any values outside limits will be not plottted.
FUNCTIONS
lims
lims(%pairs)Call limits() on each kv pair in %pairs. Returns an array ref like [ limits($key1, $value1), ... ].
xlim
xlim($a, $b)This is a shortcut of
limits(x => [$a, $b]);ylim
ylim($a, $b)This is a shortcut of
limits(y => [$a, $b]);limits
limits($var, $lims)expand_limits
expand_limits(%params)Expand the plot limits, using data.
my $p = ggplot($mtcars, aes( x=> 'mpg', y => 'wt')) + geom_point();
$p->expand_limits(x => 0);
$p->expand_limits(y => [1, 9]);AUTHOR
Stephan Loyd <sloyd@cpan.org>
COPYRIGHT AND LICENSE
This software is copyright (c) 2019 by Stephan Loyd.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.