NAME
AI::XGBoost::DMatrix - XGBoost class for data
VERSION
version 0.007
SYNOPSIS
use aliased 'AI::XGBoost::DMatrix';
my $train_data = DMatrix->FromFile(filename => 'agaricus.txt.train');DESCRIPTION
XGBoost DMatrix perl model
Work In Progress, the API may change. Comments and suggestions are welcome!
METHODS
From
Construct a DMatrix from diferent sources. Based on parameters dispatch to the correct From* method
Refer to From* to see what can be done.
FromFile
Construct a DMatrix from a file
Parameters
- filename
-
File to read
- silent
-
Supress messages
FromMat
Construct a DMatrix from a bidimensional array
Parameters
- matrix
-
Bidimensional array
- label
-
Array with the labels of the rows of matrix. Optional
- missing
-
Value to identify missing values. Optional, default `NaN`
set_float_info
Set float type property
Parameters
- field
-
Field name of the information
- info
-
array with the information
get_float_info
Get float type property
Parameters
- field
-
Field name of the information
set_label
Set label of DMatrix. This label is the "classes" in classification problems
Parameters
- data
-
Array with the labels
get_label
Get label of DMatrix. This label is the "classes" in classification problems
set_weight
Set weight of each instance
Parameters
- weight
-
Array with the weights
get_weight
Get the weight of each instance
num_row
Number of rows
num_col
Number of columns
dims
Dimensions of the matrix. That is: rows, columns
DEMOLISH
Free the
AUTHOR
Pablo Rodríguez González <pablo.rodriguez.gonzalez@gmail.com>
COPYRIGHT AND LICENSE
This software is Copyright (c) 2017 by Pablo Rodríguez González.
This is free software, licensed under:
The Apache License, Version 2.0, January 2004