cocur / arff
v0.2.3
2018-09-07 18:37 UTC
Requires (Dev)
- mikey179/vfsstream: ~1.5
- mockery/mockery: ~0.9
- phpunit/phpunit: 6.*|~7.0
- plumphp/plum: ~0.5
README
Read and write
.arff
files for Weka.
Developed by Florian Eckerstorfer in Vienna, Europe.
Installation
You can install cocur/arff
with Composer:
$ composer require cocur/arff
Usage
Write .arff
file
use Cocur\Arff\Document; use Cocur\Arff\Column\NumericColumn; use Cocur\Arff\Column\NominalColumn; $document = new Document('iris'); $document->addColumn(new NumericColumn('sepallength')); $document->addColumn(new NumericColumn('sepalwidth')); $document->addColumn(new NumericColumn('petallength')); $document->addColumn(new NumericColumn('petalwidth')); $document->addColumn(new NominalColumn('class', ['Iris-setosa','Iris-versicolor','Iris-virginica'])); $document->addData(['sepallength' => 5.1, 'sepalwidth' => 3.5, 'petallength' => 1.4, 'petalwidth' => 0.2, 'class' => 'Iris-setosa']); $writer = new Writer(); $writer->render($document); // returns rendered .arff file $writer->write($document, 'iris.arff'); // writes .arff file to disk
Read .arff
file
use Cocur\Arff\Reader; $reader = new Reader(); $document = $reader->readFile('irif.arff'); // returns Cocur\Arff\Document
Available types of columns
Cocur\Arff\Column\NumericColumn
Cocur\Arff\Column\StringColumn
Cocur\Arff\Column\NominalColumn
Cocur\Arff\Column\DateColumn
Date columns
You can define the date format for date columns. The format is only used to write to the Arff file, you need to convert the date manually before adding the data.
$column = new DateColumn('created', 'yyyy-MM-dd HH:mm:ss');
Plum Integration
cocur/arff contains a writer for Plum.
use Cocur\Arff\Bridge\Plum\ArffWriter; $writer = new ArffWriter('filename.arff', 'name', [ new NumericColumn('sepallength'), new NumericColumn('sepalwidth'), new NumericColumn('petallength'), new NumericColumn('petalwidth'), new NominalColumn('class', ['Iris-setosa','Iris-versicolor','Iris-virginica']), ]);
Changelog
Version 0.2.3 (7 September 2018)
- #3 Support more generic relation name and drops malformed lines (by frantzmiccoli)
Version 0.2.2 (16 March 2018)
- Case-insensitive parsing of column type
Version 0.2.1 (2 September 2017)
- Fix parsing of nominal columns
Version 0.2 (2 September 2017)
- Split
ArffFile
intoCocur\Arff\Document
andCocur\Arff\Writer
- Add
Cocur\Arff\Reader
to read.arff
files
Version 0.1 (17 July 2015)
- Initial release
License
The MIT license applies to cocur/arff. For the full copyright and license information, please view the LICENSE file distributed with this source code.