PHP-Scatterplot

1. Features

PHP-Scatterplot is a PHP library for creating scatter plots easily.

You can also retrieve parsed data:

Mean, Variance, Standard Deviation, Covariance,

Correlation Coefficient and Regression Line Formula.

Reference Line and Specification Limits are supported.

Multiple Layers (Data Sets) are supported.

3. Requirements

PHP 8.1 or later
Imagick PHP Extension
Composer

4. Installation

composer require macocci7/php-scatterplot

5.1. Basic Usage

PHP: examples/BasicUsage.php

<?php

require_once __DIR__ . '/../vendor/autoload.php';

use Macocci7\PhpScatterplot\Scatterplot;

$layers = [
    [
        'x' => [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, ],
        'y' => [ 1, 2, 3, 4, 5, 8, 4, 7, 11, 9, 1, ],
    ],
];

$sp = new Scatterplot();
$sp->layers($layers)
    ->create('img/BasicUsage.png');

Result: examples/img/BasicUsage.png
Details:
- Import Autoloader: require_once __DIR__ . '/../vendor/autoload.php'
- Declare: use Macocci7\PhpScatterplot
- Prepare Data: $layers = [ $layer ]
  - $layers: array<int|string, array<string, list<int|float>>>
  - $layer: array<string, list<int|float>>
  - $layer must have hash keys of x and y.
  - Hash arrays x and y must have the same number of elements.
- Instantiate: new Scatterplot()
- Set Data: layers($layers)
- Create Image: create($path)

5.2. Using Layers

PHP: examples/UsingLayers.php

<?php

require_once __DIR__ . '/../vendor/autoload.php';

use Macocci7\PhpScatterplot\Scatterplot;

$layers = [
    'John' => [
        'x' => [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, ],
        'y' => [ 1, 2, 3, 4, 5, 8, 4, 7, 11, 9, 1, ],
    ],
    'Jake' => [
        'x' => [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, ],
        'y' => [ 11, 8, 10, 7, 9, 6, 5, 3, 4, 2, 1, ],
    ],
    'Hugo' => [
        'x' => [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, ],
        'y' => [ 4, 8, 10, 1, 9, 6, 5, 3, 7, 1, 11, ],
    ],
    'Alex' => [
        'x' => [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, ],
        'y' => [ 3, 5, 11, 4, 8, 2, 9, 10, 1, 11, 7, ],
    ],
];

$legends = array_keys($layers);

$sp = new Scatterplot();
$sp->layers($layers)
   ->plotSize(6)
   ->legends($legends)
   ->labelX('Data X')
   ->labelY('Data Y')
   ->caption('Using Layers')
   ->create('img/UsingLayers.png');

Result: examples/img/UsingLayers.png
Details:
- Change Plot Size (Diameter): plotSize(int $pixSize)
- Set Legend Labels: legends(string[] $legends)
- Set Label for X Axis: labelX(string $labelX)
- Set Label for Y Axis: labelY(string $labelY)
- Set Caption: caption(string $caption)

5.3. Adjusting the Display By Methods

PHP: examples/AdjustDisplayByMethods.php

<?php

require_once __DIR__ . '/../vendor/autoload.php';

use Macocci7\PhpScatterplot\Scatterplot;

$layers = [
    'John' => [
        'x' => [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, ],
        'y' => [ 1, 2, 3, 4, 5, 8, 4, 7, 11, 9, 1, ],
    ],
    'Jake' => [
        'x' => [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, ],
        'y' => [ 11, 8, 10, 7, 9, 6, 5, 3, 4, 2, 1, ],
    ],
    'Hugo' => [
        'x' => [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, ],
        'y' => [ 4, 8, 10, 1, 9, 6, 5, 3, 7, 1, 11, ],
    ],
    'Alex' => [
        'x' => [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, ],
        'y' => [ 3, 5, 11, 4, 8, 2, 9, 10, 1, 11, 7, ],
    ],
];

$legends = array_keys($layers);

$sp = new Scatterplot();
$sp->layers($layers)
   ->limitX(0, 12)
   ->limitY(0, 12)
   ->gridXPitch(2)
   ->gridYPitch(2)
   ->bgcolor('#ccccff')
   ->colors(['#ffffff'])
   ->plotSize(4)
   ->fontColor('#333333')
   ->grid(1, '#999999')
   ->gridXOn()
   ->gridYOn()
   ->regressionLine(3, [ '#666666', '#cc2222', '#2222cc', '#22cc22', ])
   ->referenceLineX(1.5, 1, '#00ccff')
   ->referenceLineY(1.5, 1, '#00ccff')
   ->specificationLimitX(0.5, 11.5, 1, '#ff00ff')
   ->specificationLimitY(0.5, 11.5, 1, '#ff00ff')
   ->labelX('DATA X')
   ->labelY('DATA Y')
   ->caption('SCATTER PLOT')
   ->legends($legends)
   ->create('img/AdjustDisplayByMethods.png');

Result: examples/img/AdjustDisplayByMethods.png

Details:

Available Method
limitX(int\|float $lower, int\|float $upper)
limitY(int\|float $lower, int\|float $upper)
resize(int $width, int $height)
frame($xRatio, $yRatio)
bgcolor(string\|null $color = null)
axis(int $width, string\|null $color = null)
grid(int $width, string\|null $color = null)
gridXPitch(int\|float $pitch)
gridYPitch(int\|float $pitch)
colors(array $colors)
plotSize(int $size)
fontPath(string $path)
fontSize(int\|float $size)
fontColor(string $color)
referenceLineX(int\|float $x, int $width = 1, string $color = '#0000ff')
referenceLineY(int\|float $y, int $width = 1, string $color = '#0000ff')
specificationLimitX(int\|float $lower, int\|float $upper, int $width = 1, string $color = '#ff00ff')
specificationLimitY(int\|float $lower, int\|float $upper, int $width = 1, string $color = '#ff00ff')
regressionLine(int $width, array $colors)
labelX(string $label)
labelY(string $label)
caption(string $caption)
legends(array $legends)
gridXOn()
gridXOff()
gridYOn()
gridYOff()
referenceLineXOff()
referenceLineYOff()
referenceLinesOff()
specificationLimitXOff()
specificationLimitYOff()
specificationLimitsOff()
regressionLineOn()
regressionLineOff()
legendOff()

5.4. Adjusting the Display By Neon File

First, prepare a Neon file like this:

Neon: examples/AdjustDisplayByNeon.neon

#canvasWidth: 600
#canvasHeight: 500
canvasBackgroundColor: '#ccccff'
#frameXRatio: 0.8
#frameYRatio: 0.7
#axisColor: '#666666'
#axisWidth: 1
gridColor: '#999999'
#gridWidth: 1
gridXPitch: 2
gridYPitch: 2
gridX: true
gridY: true
xLimitUpper: 12
xLimitLower: 0
yLimitUpper: 12
yLimitLower: 0
plotDiameter: 6
#fontPath: 'fonts/ipaexg.ttf' # IPA ex Gothic 00401
#fontSize: 16
#fontColor: '#333333'
referenceLineX: true
referenceLineXValue: 1.5
referenceLineXWidth: 1
referenceLineXColor: '#009933'
referenceLineY: true
referenceLineYValue: 1.5
referenceLineYWidth: 1
referenceLineYColor: '#009933'
specificationLimitX: true
specificationLimitXLower: 0.5
specificationLimitXUpper: 11.5
specificationLimitXWidth: 1
specificationLimitXColor: '#ff00ff'
specificationLimitY: true
specificationLimitYLower: 0.5
specificationLimitYUpper: 11.5
specificationLimitYWidth: 1
specificationLimitYColor: '#ff00ff'
regressionLine: true
regressionLineWidth: 3
labelX: 'DATA X'
labelY: 'DATA Y'
caption: 'Adjusting the Display By Neon File'
legend: true
legends: [ 'John', 'Jake', 'Hugo', 'Alex', ]
legendWidth: 100
legendFontSize: 10
colors:
    - '#3333cc'
    - '#cc3333'
    - '#339933'
    - '#33cccc'
    - '#cc3333'
    - '#ffcc33'
    - '#cccc33'
    - '#cc33cc'
regressionLineColors:
    - '#2222cc'
    - '#cc2222'
    - '#22cc22'
    - '#22cccc'

Second, Code PHP like this:

PHP: examples/AdjustDisplayByNeon.php

<?php

require_once __DIR__ . '/../vendor/autoload.php';

use Macocci7\PhpScatterplot\Scatterplot;

$layers = [
    'John' => [
        'x' => [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, ],
        'y' => [ 1, 2, 3, 4, 5, 8, 4, 7, 11, 9, 1, ],
    ],
    'Jake' => [
        'x' => [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, ],
        'y' => [ 11, 8, 10, 7, 9, 6, 5, 3, 4, 2, 1, ],
    ],
    'Hugo' => [
        'x' => [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, ],
        'y' => [ 4, 8, 10, 1, 9, 6, 5, 3, 7, 1, 11, ],
    ],
    'Alex' => [
        'x' => [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, ],
        'y' => [ 3, 5, 11, 4, 8, 2, 9, 10, 1, 11, 7, ],
    ],
];

$sp = new Scatterplot();
$sp->layers($layers)
   ->config('AdjustDisplayByNeon.neon')
   ->create('img/AdjustDisplayByNeon.png');

Then, run the PHP code.

Result: examples/img/AdjustDisplayByNeon.png

5.5. Adjusting the Display By Array

PHP: examples/AdjustDisplayByArray.php

<?php

require_once __DIR__ . '/../vendor/autoload.php';

use Macocci7\PhpScatterplot\Scatterplot;

$layers = [
    'John' => [
        'x' => [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, ],
        'y' => [ 1, 2, 3, 4, 5, 8, 4, 7, 11, 9, 1, ],
    ],
    'Jake' => [
        'x' => [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, ],
        'y' => [ 11, 8, 10, 7, 9, 6, 5, 3, 4, 2, 1, ],
    ],
    'Hugo' => [
        'x' => [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, ],
        'y' => [ 4, 8, 10, 1, 9, 6, 5, 3, 7, 1, 11, ],
    ],
    'Alex' => [
        'x' => [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, ],
        'y' => [ 3, 5, 11, 4, 8, 2, 9, 10, 1, 11, 7, ],
    ],
];

$conf = [
    //'canvasWidth' => 600,
    //'canvasHeight' => 500,
    'canvasBackgroundColor' => '#ccccff',
    //'frameXRatio' => 0.8,
    //'frameYRatio' => 0.7,
    //'axisColor' => '#666666',
    //'axisWidth' => 1,
    'gridColor' => '#999999',
    //'gridWidth' => 1,
    'gridXPitch' => 2,
    'gridYPitch' => 2,
    'gridX' => true,
    'gridY' => true,
    'xLimitUpper' => 12,
    'xLimitLower' => 0,
    'yLimitUpper' => 12,
    'yLimitLower' => 0,
    'plotDiameter' => 6,
    //'fontPath' => 'fonts/ipaexg.ttf', // IPA ex Gothic 00401
    //'fontSize' => 16,
    //'fontColor' => '#333333',
    'referenceLineX' => true,
    'referenceLineXValue' => 1.5,
    'referenceLineXWidth' => 1,
    'referenceLineXColor' => '#009933',
    'referenceLineY' => true,
    'referenceLineYValue' => 1.5,
    'referenceLineYWidth' => 1,
    'referenceLineYColor' => '#009933',
    'specificationLimitX' => true,
    'specificationLimitXLower' => 0.5,
    'specificationLimitXUpper' => 11.5,
    'specificationLimitXWidth' => 1,
    'specificationLimitXColor' => '#ff00ff',
    'specificationLimitY' => true,
    'specificationLimitYLower' => 0.5,
    'specificationLimitYUpper' => 11.5,
    'specificationLimitYWidth' => 1,
    'specificationLimitYColor' => '#ff00ff',
    'regressionLine' => true,
    'regressionLineWidth' => 3,
    'labelX' => 'DATA X',
    'labelY' => 'DATA Y',
    'caption' => 'Adjusting the Display By Neon File',
    'legend' => true,
    'legends' => [ 'John', 'Jake', 'Hugo', 'Alex', ],
    'legendWidth' => 100,
    'legendFontSize' => 10,
    'colors' => [
        '#3333cc',
        '#cc3333',
        '#339933',
        '#33cccc',
        '#cc3333',
        '#ffcc33',
        '#cccc33',
        '#cc33cc',
    ],
    'regressionLineColors' => [
        '#2222cc',
        '#cc2222',
        '#22cc22',
        '#22cccc',
    ],
];

$sp = new Scatterplot();
$sp->layers($layers)
   ->config($conf)
   ->create('img/AdjustDisplayByArray.png');

Result: examples/img/AdjustDisplayByArray.png

5.6. Transparent Background

PHP: examples/TransparentBackground.php

<?php

require_once __DIR__ . '/../vendor/autoload.php';

use Macocci7\PhpScatterplot\Scatterplot;

$layers = [
    'John' => [
        'x' => [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, ],
        'y' => [ 1, 2, 3, 4, 5, 8, 4, 7, 11, 9, 1, ],
    ],
    'Jake' => [
        'x' => [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, ],
        'y' => [ 11, 8, 10, 7, 9, 6, 5, 3, 4, 2, 1, ],
    ],
    'Hugo' => [
        'x' => [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, ],
        'y' => [ 4, 8, 10, 1, 9, 6, 5, 3, 7, 1, 11, ],
    ],
    'Alex' => [
        'x' => [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, ],
        'y' => [ 3, 5, 11, 4, 8, 2, 9, 10, 1, 11, 7, ],
    ],
];

$sp = new Scatterplot();
$sp->layers($layers)
   ->config('AdjustDisplayByNeon.neon')
   ->config([
       // This results in transparent backgournd
       'canvasBackgroundColor' => null,
   ])
   ->create('img/TransparentBackground.png');

Result: examples/img/TransparentBackground.png

5.7. Parsed Data

PHP: examples/ParsedData.php

<?php

require_once __DIR__ . '/../vendor/autoload.php';

use Macocci7\PhpScatterplot\Analyzer;

$a = new Analyzer();

$layers = [
    'John' => [
        'x' => [1,2,3,4,5,6,7,8,9,10,11],
        'y' => [1,2,3,4,5,8,4,7,11,9,1],
    ],
    'Jake' => [
        'x' => [1,2,3,4,5,6,7,8,9,10,11],
        'y' => [11,8,10,7,9,6,5,3,4,2,1],
    ],
];

var_dump($a->parse($layers));

Result: examples/ParsedData.txt

array(2) {
    ["John"]=>
    array(6) {
        ["count"]=>
        int(11)
        ["x"]=>
        array(5) {
            ["Mean"]=>
            int(6)
            ["Max"]=>
            int(11)
            ["Min"]=>
            int(1)
            ["Variance"]=>
            int(10)
            ["StandardDeviation"]=>
            float(3.1622776601683795)
        }
        ["y"]=>
        array(5) {
            ["Mean"]=>
            int(5)
            ["Max"]=>
            int(11)
            ["Min"]=>
            int(1)
            ["Variance"]=>
            float(10.181818181818182)
            ["StandardDeviation"]=>
            float(3.1908961408698624)
        }
        ["Covariance"]=>
        float(5.181818181818182)
        ["CorrelationCoefficient"]=>
        float(0.5135343537364686)
        ["RegressionLineFormula"]=>
        array(2) {
            ["a"]=>
            float(0.5181818181818182)
            ["b"]=>
            float(1.8909090909090907)
        }
    }
    ["Jake"]=>
    array(6) {
        ["count"]=>
        int(11)
        ["x"]=>
        array(5) {
            ["Mean"]=>
            int(6)
            ["Max"]=>
            int(11)
            ["Min"]=>
            int(1)
            ["Variance"]=>
            int(10)
            ["StandardDeviation"]=>
            float(3.1622776601683795)
        }
        ["y"]=>
        array(5) {
            ["Mean"]=>
            int(6)
            ["Max"]=>
            int(11)
            ["Min"]=>
            int(1)
            ["Variance"]=>
            int(10)
            ["StandardDeviation"]=>
            float(3.1622776601683795)
        }
        ["Covariance"]=>
        float(-9.454545454545455)
        ["CorrelationCoefficient"]=>
        float(-0.9454545454545453)
        ["RegressionLineFormula"]=>
        array(2) {
            ["a"]=>
            float(-0.9454545454545455)
            ["b"]=>
            float(11.672727272727274)
        }
    }
}

6. Examples

BasicUsage.php >> results in BasicUsage.md
UsingLayers.php >> results in UsingLayers.md
AdjustDisplayByMethods.php >> results in AdjustDisplayByMethods.md
AdjustDisplayByNeon.php >> results in:
AdjustDisplayByArray.php >> results in:
TransparentBackground.php >> results in:
ParsedData.php >> results in ParsedData.txt
Matrix.php >> results in Matrix.md

7. License

MIT

Document written: 2023/06/06

Document updated: 2024/04/18

Name		Name	Last commit message	Last commit date
Latest commit History 25 Commits
.github/workflows		.github/workflows
bin		bin
conf		conf
examples		examples
src		src
tests		tests
.gitignore		.gitignore
LICENSE		LICENSE
PHP_VERSIONS		PHP_VERSIONS
README.md		README.md
composer.json		composer.json
methods.txt		methods.txt
phpcs.xml		phpcs.xml
phpmd.xml		phpmd.xml
phpstan.neon		phpstan.neon

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PHP-Scatterplot

1. Features

Contents

3. Requirements

4. Installation

5. Usage

5.1. Basic Usage

5.2. Using Layers

5.3. Adjusting the Display By Methods

5.4. Adjusting the Display By Neon File

5.5. Adjusting the Display By Array

5.6. Transparent Background

5.7. Parsed Data

6. Examples

7. License

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PHP-Scatterplot

1. Features

Contents

3. Requirements

4. Installation

5. Usage

5.1. Basic Usage

5.2. Using Layers

5.3. Adjusting the Display By Methods

5.4. Adjusting the Display By Neon File

5.5. Adjusting the Display By Array

5.6. Transparent Background

5.7. Parsed Data

6. Examples

7. License

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