Update php-cs-fixer

CHANGELOG.md

@@ -3,8 +3,10 @@ CHANGELOG
 
 This changelog references the relevant changes done in PHP-ML library.
 
-* 0.2.1 (in plan/progress)
+* 0.2.2 (in plan/progress)
     * feature [Regression] - SSE, SSTo, SSR  - sum of the squared
+
+* 0.2.1 (2016-11-20)
     * feature [Association] - Apriori algorithm implementation
     * bug [Metric] - division by zero
 

src/Phpml/Math/Statistic/StandardDeviation.php

@@ -33,7 +33,7 @@ class StandardDeviation
         foreach ($a as $val) {
             $d = $val - $mean;
             $carry += $d * $d;
-        };
+        }
 
         if ($sample) {
             --$n;

src/Phpml/Pipeline.php

@@ -20,7 +20,7 @@ class Pipeline implements Estimator
      * @param array|Transformer[] $transformers
      * @param Estimator           $estimator
      */
-    public function __construct(array $transformers = [], Estimator $estimator)
+    public function __construct(array $transformers, Estimator $estimator)
     {
         foreach ($transformers as $transformer) {
             $this->addTransformer($transformer);

src/Phpml/Preprocessing/Imputer.php

@@ -37,7 +37,7 @@ class Imputer implements Preprocessor
      * @param int        $axis
      * @param array|null $samples
      */
-    public function __construct($missingValue = null, Strategy $strategy, int $axis = self::AXIS_COLUMN, array $samples = [])
+    public function __construct($missingValue, Strategy $strategy, int $axis = self::AXIS_COLUMN, array $samples = [])
     {
         $this->missingValue = $missingValue;
         $this->strategy = $strategy;

tests/Phpml/Metric/ClassificationReportTest.php

@@ -78,8 +78,7 @@ class ClassificationReportTest extends  \PHPUnit_Framework_TestCase
         $this->assertEquals([
             'precision' => 0,
             'recall' => 0,
-            'f1score' => 0
+            'f1score' => 0,
         ], $report->getAverage(), '', 0.01);
     }
-
 }