medansoftware / c45-algorithm-php
1.0.2
2022-04-24 19:45 UTC
Requires
- php: >=5.5
- phpoffice/phpspreadsheet: ^1.9
This package is auto-updated.
Last update: 2024-09-10 07:37:27 UTC
README
Installation
The recommended way to install the C45 PHP library is through Composer :
composer require medansoftware/c45-algorithm-php
Manual Installation
composer dump-autoload
Setup
$c45 = new Algorithm\C45('example.xlsx', 'PLAY'); $initialize = $c45->initialize(); // initialize $buildTree = $initialize->buildTree(); // build tree $arrayTree = $buildTree->toArray(); // set to array $stringTree = $buildTree->toString(); // set to string echo "<pre>"; print_r ($arrayTree); echo "</pre>"; echo $stringTree;
or
$c45 = new Algorithm\C45(); $c45->loadFile('example.xlsx'); // load example file $c45->setTargetAttribute('PLAY'); // set target attribute $initialize = $c45->initialize(); // initialize $buildTree = $initialize->buildTree(); // build tree $arrayTree = $buildTree->toArray(); // set to array $stringTree = $buildTree->toString(); // set to string echo "<pre>"; print_r ($arrayTree); echo "</pre>"; echo $stringTree;
Other Examples
$c45 = new Algorithm\C45(); $c45->loadFile('example.xlsx')->setTargetAttribute('PLAY')->initialize(); echo "<pre>"; print_r ($c45->buildTree()->toString()); // print as string echo "</pre>"; echo "<pre>"; print_r ($c45->buildTree()->toJson()); // print as JSON echo "</pre>"; echo "<pre>"; print_r ($c45->buildTree()->toArray()); // print as array echo "</pre>";
Initialize Data from Array
$c45 = new Algorithm\C45(); $input = new Algorithm\C45\DataInput; $data = array( array( "OUTLOOK" => "Sunny", "TEMPERATURE" => "Hot", "HUMIDITY" => "High", "WINDY" => "False", "PLAY" => "No" ), array( "OUTLOOK" => "Sunny", "TEMPERATURE" => "Hot", "HUMIDITY" => "High", "WINDY" => "True", "PLAY" => "No" ), array( "OUTLOOK" => "Cloudy", "TEMPERATURE" => "Hot", "HUMIDITY" => "High", "WINDY" => "False", "PLAY" => "Yes" ), array( "OUTLOOK" => "Rainy", "TEMPERATURE" => "Mild", "HUMIDITY" => "High", "WINDY" => "False", "PLAY" => "Yes" ), array( "OUTLOOK" => "Rainy", "TEMPERATURE" => "Cool", "HUMIDITY" => "Normal", "WINDY" => "False", "PLAY" => "Yes" ), array( "OUTLOOK" => "Rainy", "TEMPERATURE" => "Cool", "HUMIDITY" => "Normal", "WINDY" => "True", "PLAY" => "No" ), array( "OUTLOOK" => "Cloudy", "TEMPERATURE" => "Cool", "HUMIDITY" => "Normal", "WINDY" => "True", "PLAY" => "Yes" ), array( "OUTLOOK" => "Sunny", "TEMPERATURE" => "Mild", "HUMIDITY" => "High", "WINDY" => "False", "PLAY" => "No" ), array( "OUTLOOK" => "Sunny", "TEMPERATURE" => "Cool", "HUMIDITY" => "Normal", "WINDY" => "False", "PLAY" => "Yes" ), array( "OUTLOOK" => "Rainy", "TEMPERATURE" => "Mild", "HUMIDITY" => "Normal", "WINDY" => "False", "PLAY" => "Yes" ), array( "OUTLOOK" => "Sunny", "TEMPERATURE" => "Mild", "HUMIDITY" => "Normal", "WINDY" => "True", "PLAY" => "Yes" ), array( "OUTLOOK" => "Cloudy", "TEMPERATURE" => "Mild", "HUMIDITY" => "High", "WINDY" => "True", "PLAY" => "Yes" ), array( "OUTLOOK" => "Cloudy", "TEMPERATURE" => "Hot", "HUMIDITY" => "Normal", "WINDY" => "False", "PLAY" => "Yes" ), array( "OUTLOOK" => "Rainy", "TEMPERATURE" => "Mild", "HUMIDITY" => "High", "WINDY" => "True", "PLAY" => "No" ) ); // Initialize Data $input->setData($data); // Set data from array $input->setAttributes(array('OUTLOOK', 'TEMPERATURE', 'HUMIDITY', 'WINDY', 'PLAY')); // Set attributes of data // Initialize C4.5 $c45->c45 = $input; // Set input data $c45->setTargetAttribute('PLAY'); // Set target attribute $initialize = $c45->initialize(); // initialize // Build Output $buildTree = $initialize->buildTree(); // Build tree $arrayTree = $buildTree->toArray(); // Set to array $stringTree = $buildTree->toString(); // Set to string echo "<pre>"; print_r ($arrayTree); echo "</pre>"; echo $stringTree;
$new_data = array( 'OUTLOOK' => 'Sunny', 'TEMPERATURE' => 'Hot', 'HUMIDITY' => 'High', 'WINDY' => FALSE ); echo $c45->initialize()->buildTree()->classify($new_data); // print "No"
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