# Copyright 2007, 2009, 2010 Kevin Ryde
# This file is part of Chart.
#
# Chart is free software; you can redistribute it and/or modify it under the
# terms of the GNU General Public License as published by the Free Software
# Foundation; either version 3, or (at your option) any later version.
#
# Chart is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along
# with Chart. If not, see <http://www.gnu.org/licenses/>.
package App::Chart::Series::Derived::AdaptiveLaguerreAlpha;
use 5.010;
use strict;
use warnings;
use Carp;
use List::Util qw(min max);
use Locale::TextDomain ('App-Chart');
use base 'App::Chart::Series::Indicator';
use App::Chart::Series::Derived::AdaptiveLaguerre;
sub longname { __('Adaptive Laguerre - Alpha') }
sub shortname { __('Adaptive Laguerre Alpha') }
sub manual { __p('manual-node','Adaptive Laguerre Filter') }
use constant
{ type => 'indicator',
units => 'ema_alpha',
priority => -10,
minimum => 0,
maximum => 1,
parameter_info => [ { name => __('Days'),
# shared with main AdaptiveLaguerre
key => 'adaptive_laguerre_filter_days',
type => 'integer',
minimum => 1,
default => 20 } ],
};
sub new {
my ($class, $parent, $N) = @_;
$N //= parameter_info()->[0]->{'default'};
($N >= 1) || croak "Adaptive Laguerre Filter bad N: $N";
return $class->SUPER::new
(parent => $parent,
parameters => [ $N ],
arrays => { values => [] },
array_aliases => { });
}
sub proc {
my ($class, $N) = @_;
my $proc_laguerre_and_alpha = App::Chart::Series::Derived::AdaptiveLaguerre
->proc_laguerre_and_alpha($N);
return sub {
return ($proc_laguerre_and_alpha->(@_))[1];
};
}
*warmup_count = \&App::Chart::Series::Derived::AdaptiveLaguerre::warmup_count;
1;
__END__
# =head1 NAME
#
# App::Chart::Series::Derived::AdaptiveLaguerreAlpha -- Laguerre Filter moving average
#
# =head1 SYNOPSIS
#
# my $series = $parent->AdaptiveLaguerreAlpha($alpha);
#
# =head1 DESCRIPTION
#
# ...
#
# =head1 SEE ALSO
#
# L<App::Chart::Series>, L<App::Chart::Series::Derived::AdaptiveLaguerre>
#
# =cut