DataTransformer::numericLabels() - Code Metrics - Inspection of "start to implement SVM with libsvm" - php-ai/php-ml - Measure and Improve Code Quality continuously with Scrutinizer

Completed

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by Arkadiusz

created 2016-05-05 21:29 UTC

DataTransformer::numericLabels() A

↳ Parent: DataTransformer

Complexity

Conditions	3
Paths	3

Size

Total Lines	13
Code Lines	7

Duplication

Lines	0
Ratio	0 %

Metric	Value
dl	0
loc	13
rs	9.4285
cc	3
eloc	7
nc	3
nop	1

<?php

declare (strict_types = 1);

namespace Phpml\SupportVectorMachine;

class DataTransformer
{
    /**
     * @param array $samples
     * @param array $labels
     *
     * @return string
     */
    public static function trainingSet(array $samples, array $labels): string
    {
        $set = '';
        $numericLabels = self::numericLabels($labels);
        foreach ($labels as $index => $label) {
            $set .= sprintf('%s %s %s', $numericLabels[$label], self::sampleRow($samples[$index]), PHP_EOL);
        }

        return $set;
    }

    /**
     * @param array $labels
     *
     * @return array
     */
    public static function numericLabels(array $labels): array
    {
        $numericLabels = [];
        foreach ($labels as $label) {
            if (isset($numericLabels[$label])) {
                continue;
            }

            $numericLabels[$label] = count($numericLabels);
        }

        return $numericLabels;
    }

    /**
     * @param array $sample
     *
     * @return string
     */
    private static function sampleRow(array $sample): string
    {
        $row = [];
        foreach ($sample as $index => $feature) {
            $row[] = sprintf('%s:%s', $index, $feature);
        }

        return implode(' ', $row);
    }
}


1			<?php
2
3			declare (strict_types = 1);
4
5			namespace Phpml\SupportVectorMachine;
6
7			class DataTransformer
8			{
9			/**
10			* @param array $samples
11			* @param array $labels
12			*
13			* @return string
14			*/
15			public static function trainingSet(array $samples, array $labels): string
16			{
17			$set = '';
18			$numericLabels = self::numericLabels($labels);
19			foreach ($labels as $index => $label) {
20			$set .= sprintf('%s %s %s', $numericLabels[$label], self::sampleRow($samples[$index]), PHP_EOL);
21			}
22
23			return $set;
24			}
25
26			/**
27			* @param array $labels
28			*
29			* @return array
30			*/
31			public static function numericLabels(array $labels): array
32			{
33			$numericLabels = [];
34			foreach ($labels as $label) {
35			if (isset($numericLabels[$label])) {
36			continue;
37			}
38
39			$numericLabels[$label] = count($numericLabels);
40			}
41
42			return $numericLabels;
43			}
44
45			/**
46			* @param array $sample
47			*
48			* @return string
49			*/
50			private static function sampleRow(array $sample): string
51			{
52			$row = [];
53			foreach ($sample as $index => $feature) {
54			$row[] = sprintf('%s:%s', $index, $feature);
55			}
56
57			return implode(' ', $row);
58			}
59			}
60

php-ai / php-ml

Push — develop ( a2e8a8...95caef )

DataTransformer::numericLabels() A

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