DecisionTreeLeaf::__toString() - Code Metrics - Inspection of "Ensemble Classifiers : Bagging and RandomForest" - php-ai/php-ml - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#36)

unknown

created 2017-02-02 12:43 UTC

DecisionTreeLeaf::__toString() C

↳ Parent: Project

Complexity

Conditions	7
Paths	15

Size

Total Lines	32
Code Lines	25

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	32
rs	6.7272
c	0
b	0
f	0
cc	7
eloc	25
nc	15
nop	0

<?php
<<<<<<< HEAD

=======

>>>>>>> refs/remotes/php-ai/master
declare(strict_types=1);

namespace Phpml\Classification\DecisionTree;

class DecisionTreeLeaf
{
    const OPERATOR_EQ = '=';
    /**
     * @var string
     */
    public $value;

    /**
     * @var int
     */
    public $columnIndex;

    /**
     * @var DecisionTreeLeaf
     */
    public $leftLeaf = null;

    /**
     * @var DecisionTreeLeaf
     */
    public $rightLeaf= null;

    /**
     * @var array
     */
    public $records = [];

    /**
     * Class value represented by the leaf, this value is non-empty
     * only for terminal leaves
     *
     * @var string
     */
    public $classValue = '';

    /**
     * @var bool
     */
    public $isTerminal = false;

    /**
     * @var float
     */
    public $giniIndex = 0;

    /**
     * @var int
     */
    public $level = 0;

    /**
     * @param array $record
     * @return bool
     */
    public function evaluate($record)
    {
        $recordField = $record[$this->columnIndex];
        if (preg_match("/^([<>=]{1,2})\s*(.*)/", $this->value, $matches)) {
            $op = $matches[1];
            $value= floatval($matches[2]);
            $recordField = strval($recordField);
            eval("\$result = $recordField $op $value;");
            return $result;
        }
        return $recordField == $this->value;
    }

    public function __toString()
    {
        if ($this->isTerminal) {
            $value = "<b>$this->classValue</b>";
        } else {
            $value = $this->value;
            $col = "col_$this->columnIndex";
            if (! preg_match("/^[<>=]{1,2}/", $value)) {
                $value = "=$value";
            }
            $value = "<b>$col $value</b><br>Gini: ". number_format($this->giniIndex, 2);
        }
        $str = "<table ><tr><td colspan=3 align=center style='border:1px solid;'>
				$value</td></tr>";
        if ($this->leftLeaf || $this->rightLeaf) {
            $str .='<tr>';
            if ($this->leftLeaf) {
                $str .="<td valign=top><b>| Yes</b><br>$this->leftLeaf</td>";
            } else {
                $str .='<td></td>';
            }
            $str .='<td>&nbsp;</td>';
            if ($this->rightLeaf) {
                $str .="<td valign=top align=right><b>No |</b><br>$this->rightLeaf</td>";
            } else {
                $str .='<td></td>';
            }
            $str .= '</tr>';
        }
        $str .= '</table>';
        return $str;
    }
}


1			<?php
2			<<<<<<< HEAD
			0 ignored issues – show Bug introduced 2017-02-02 12:46 UTC by Report Bug Copy Issue Report This code did not parse for me. Apparently, there is an error somewhere around this line: Syntax error, unexpected T_SL Loading history...
3			=======
4
5			>>>>>>> refs/remotes/php-ai/master
6			declare(strict_types=1);
7
8			namespace Phpml\Classification\DecisionTree;
9
10			class DecisionTreeLeaf
11			{
12			const OPERATOR_EQ = '=';
13			/**
14			* @var string
15			*/
16			public $value;
17
18			/**
19			* @var int
20			*/
21			public $columnIndex;
22
23			/**
24			* @var DecisionTreeLeaf
25			*/
26			public $leftLeaf = null;
27
28			/**
29			* @var DecisionTreeLeaf
30			*/
31			public $rightLeaf= null;
32
33			/**
34			* @var array
35			*/
36			public $records = [];
37
38			/**
39			* Class value represented by the leaf, this value is non-empty
40			* only for terminal leaves
41			*
42			* @var string
43			*/
44			public $classValue = '';
45
46			/**
47			* @var bool
48			*/
49			public $isTerminal = false;
50
51			/**
52			* @var float
53			*/
54			public $giniIndex = 0;
55
56			/**
57			* @var int
58			*/
59			public $level = 0;
60
61			/**
62			* @param array $record
63			* @return bool
64			*/
65			public function evaluate($record)
66			{
67			$recordField = $record[$this->columnIndex];
68			if (preg_match("/^([<>=]{1,2})\s(.)/", $this->value, $matches)) {
69			$op = $matches[1];
70			$value= floatval($matches[2]);
71			$recordField = strval($recordField);
72			eval("\$result = $recordField $op $value;");
73			return $result;
74			}
75			return $recordField == $this->value;
76			}
77
78			public function __toString()
79			{
80			if ($this->isTerminal) {
81			$value = "<b>$this->classValue</b>";
82			} else {
83			$value = $this->value;
84			$col = "col_$this->columnIndex";
85			if (! preg_match("/^[<>=]{1,2}/", $value)) {
86			$value = "=$value";
87			}
88			$value = "<b>$col $value</b><br>Gini: ". number_format($this->giniIndex, 2);
89			}
90			$str = "<table ><tr><td colspan=3 align=center style='border:1px solid;'>
91			$value</td></tr>";
92			if ($this->leftLeaf \|\| $this->rightLeaf) {
93			$str .='<tr>';
94			if ($this->leftLeaf) {
95			$str .="<td valign=top><b>\| Yes</b><br>$this->leftLeaf</td>";
96			} else {
97			$str .='<td></td>';
98			}
99			$str .='<td> </td>';
100			if ($this->rightLeaf) {
101			$str .="<td valign=top align=right><b>No \|</b><br>$this->rightLeaf</td>";
102			} else {
103			$str .='<td></td>';
104			}
105			$str .= '</tr>';
106			}
107			$str .= '</table>';
108			return $str;
109			}
110			}
111

php-ai / php-ml

Pull Request — master (#36)

DecisionTreeLeaf::__toString() C

Complexity

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