Rename demo datasets and add Dataset suffix

src/Phpml/Dataset/Demo/GlassDataset.php

@@ -18,7 +18,7 @@ use Phpml\Dataset\CsvDataset;
  * Samples total: 214
  * Features per sample: 9.
  */
-class Glass extends CsvDataset
+class GlassDataset extends CsvDataset
 {
     public function __construct()
     {

src/Phpml/Dataset/Demo/IrisDataset.php

@@ -12,7 +12,7 @@ use Phpml\Dataset\CsvDataset;
  * Samples total: 150
  * Features per sample: 4.
  */
-class Iris extends CsvDataset
+class IrisDataset extends CsvDataset
 {
     public function __construct()
     {

src/Phpml/Dataset/Demo/WineDataset.php

@@ -12,7 +12,7 @@ use Phpml\Dataset\CsvDataset;
  * Samples total: 178
  * Features per sample: 13.
  */
-class Wine extends CsvDataset
+class WineDataset extends CsvDataset
 {
     public function __construct()
     {

tests/Phpml/Dataset/Demo/GlassDatasetTest.php

@@ -4,13 +4,13 @@ declare (strict_types = 1);
 
 namespace tests\Phpml\Dataset\Demo;
 
-use Phpml\Dataset\Demo\Glass;
+use Phpml\Dataset\Demo\GlassDataset;
 
-class GlassTest extends \PHPUnit_Framework_TestCase
+class GlassDatasetTest extends \PHPUnit_Framework_TestCase
 {
     public function testLoadingWineDataset()
     {
-        $glass = new Glass();
+        $glass = new GlassDataset();
 
         // whole dataset
         $this->assertEquals(214, count($glass->getSamples()));

tests/Phpml/Dataset/Demo/IrisDatasetTest.php

@@ -4,13 +4,13 @@ declare (strict_types = 1);
 
 namespace tests\Phpml\Dataset\Demo;
 
-use Phpml\Dataset\Demo\Iris;
+use Phpml\Dataset\Demo\IrisDataset;
 
-class IrisTest extends \PHPUnit_Framework_TestCase
+class IrisDatasetTest extends \PHPUnit_Framework_TestCase
 {
     public function testLoadingIrisDataset()
     {
-        $iris = new Iris();
+        $iris = new IrisDataset();
 
         // whole dataset
         $this->assertEquals(150, count($iris->getSamples()));

tests/Phpml/Dataset/Demo/WineDatasetTest.php

@@ -4,13 +4,13 @@ declare (strict_types = 1);
 
 namespace tests\Phpml\Dataset\Demo;
 
-use Phpml\Dataset\Demo\Wine;
+use Phpml\Dataset\Demo\WineDataset;
 
-class WineTest extends \PHPUnit_Framework_TestCase
+class WineDatasetTest extends \PHPUnit_Framework_TestCase
 {
     public function testLoadingWineDataset()
     {
-        $wine = new Wine();
+        $wine = new WineDataset();
 
         // whole dataset
         $this->assertEquals(178, count($wine->getSamples()));

tests/Phpml/Metric/AccuracyTest.php

@@ -6,7 +6,7 @@ namespace tests\Phpml\Metric;
 
 use Phpml\Classification\SVC;
 use Phpml\CrossValidation\RandomSplit;
-use Phpml\Dataset\Demo\Iris;
+use Phpml\Dataset\Demo\IrisDataset;
 use Phpml\Metric\Accuracy;
 use Phpml\SupportVectorMachine\Kernel;
 
@@ -41,7 +41,7 @@ class AccuracyTest extends \PHPUnit_Framework_TestCase
 
     public function testAccuracyOnDemoDataset()
     {
-        $dataset = new RandomSplit(new Iris(), 0.5, 123);
+        $dataset = new RandomSplit(new IrisDataset(), 0.5, 123);
 
         $classifier = new SVC(Kernel::RBF);
         $classifier->train($dataset->getTrainSamples(), $dataset->getTrainLabels());