NAME
Chart::GGPlot::Params - Collection of key-value pairs used in Chart::GGPlot
VERSION
version 0.002000
DESCRIPTION
This class provides a duck typing interface similar as Data::Frame::Autobox::HashRef, and adds a mechanism to its derived classes to allow customize aliasing of hash keys by overriding the transform_key classmethod.
CLASS METHODS
transform_key
transform_key($key)Derived classes can override this classmethod to have their own way of renaming the keys.
METHODS
length
length()Returns the count of keys.
exists
exists($key)Tests if a key exists.
keys
keys()Return an array ref of keys.
names
names()This is an alias of the keys() method.
values
values()Return an array ref of values.
isempty
isempty()Return a boolean value if length is 0.
delete
delete($key)Delete a key.
set
set($key, $value)Associate a value with a key and return the value.
at
at($key)Get associated value of the given key.
flatten
flatten()Returns an array.
hslice
hslice($keys)slice
slice($keys)This is an alias of hslice.
kv
kv()Return a list of a value with a key and return the value.
merge
merge($other, $skip_undef=false)Returns a new object with right precedence shallow merging. If $skip_undef is true, kv with undef value in $other would be skipped.
my $merged = $params->merge($other);defaults
defaults($other)Using data from $other as defaults. If $other is undef, returns a clone of $self.
rename
rename($href_or_coderef)Returns a new object.
my $p2 = $p1->rename( { $from_key => $to_key, ... } );
my $p3 = $p1->rename( sub { my ($old_key) = @_; ... return $new_key; } );as_hashref
as_hashref()Returns a hashref.
copy
copy()clone
clone()This is same as the copy() method.
SEE ALSO
Data::Frame::Autobox::HashRef, Chart::GGPlot::Aes
AUTHOR
Stephan Loyd <sloyd@cpan.org>
COPYRIGHT AND LICENSE
This software is copyright (c) 2019-2021 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.