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Algorithm::XGBoost

cpan:TITSUKI

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NAME

Algorithm::XGBoost - A Raku bindings for XGBoost ( https://github.com/dmlc/xgboost ).

SYNOPSIS

use Algorithm::XGBoost;
use Algorithm::XGBoost::Booster;
use Algorithm::XGBoost::DMatrix;
use Algorithm::XGBoost::Model;

# agaricus.txt.test is here: https://github.com/dmlc/xgboost/tree/master/demo/data
my $dmat = Algorithm::XGBoost::DMatrix.from-file("agaricus.txt.train");
say $dmat.num-row; # 6513
say $dmat.num-col; # 127
my $model = Algorithm::XGBoost.train($dmat, 10);
$model.num-feature.say; # 127

my @test[2;2] = [[0e0,0e0],[0e0,1e0]];
my $test = Algorithm::XGBoost::DMatrix.from-matrix(@test);
say $model.predict($test); # (0.9858561754226685 0.9858561754226685)

DESCRIPTION

Algorithm::XGBoost is a Raku bindings for XGBoost ( https://github.com/dmlc/xgboost ).

METHODS

train

Defined as:

method train(Algorithm::XGBoost::DMatrix $dmat, Int $num-iteration, %param --> Algorithm::XGBoost::Model)

Trains a XGBoost model.

version

Defined as:

method version(--> Version)

Returns the libxgboost version.

global-config

Defined as:

multi method global-config(Str $json-str)
multi method global-config(--> Str)

Sets/Gets the global parameters: verbosity and use_rmm.

AUTHOR

Itsuki Toyota titsuki@cpan.org

COPYRIGHT AND LICENSE

Copyright 2021 Itsuki Toyota

This library is free software; you can redistribute it and/or modify it under the Artistic License 2.0.