php-ai / php-ml

src/Phpml/Classification/DecisionTree.php

Doc Comments +2 added lines, -2 removed lines

@@ -131,7 +131,7 @@ 
 
     /**
      * @param array $records
-     * @return DecisionTreeLeaf[]
+     * @return null|DecisionTreeLeaf
      */
     protected function getBestSplit($records)
     {
@@ -254,7 +254,7 @@ 
 
     /**
      * @param array $sample
-     * @return mixed
+     * @return string
      */
     protected function predictSample(array $sample)
     {

Spacing +9 added lines, -9 removed lines

@@ -1,6 +1,6 @@ 
 <?php
 
-declare(strict_types=1);
+declare(strict_types = 1);
 
 namespace Phpml\Classification;
 
@@ -75,7 +75,7 @@ 
     protected function getColumnTypes(array $samples)
     {
         $types = [];
-        for ($i=0; $i<$this->featureCount; $i++) {
+        for ($i = 0; $i < $this->featureCount; $i++) {
             $values = array_column($samples, $i);
             $isCategorical = $this->isCategoricalColumn($values);
             $types[] = $isCategorical ? self::NOMINAL : self::CONTINUOS;
@@ -95,7 +95,7 @@ 
             $this->actualDepth = $depth;
         }
         $leftRecords = [];
-        $rightRecords= [];
+        $rightRecords = [];
         $remainingTargets = [];
         $prevRecord = null;
         $allSame = true;
@@ -108,10 +108,10 @@ 
             if ($split->evaluate($record)) {
                 $leftRecords[] = $recordNo;
             } else {
-                $rightRecords[]= $recordNo;
+                $rightRecords[] = $recordNo;
             }
             $target = $this->targets[$recordNo];
-            if (! in_array($target, $remainingTargets)) {
+            if (!in_array($target, $remainingTargets)) {
                 $remainingTargets[] = $target;
             }
         }
@@ -126,7 +126,7 @@ 
                 $split->leftLeaf = $this->getSplitLeaf($leftRecords, $depth + 1);
             }
             if ($rightRecords) {
-                $split->rightLeaf= $this->getSplitLeaf($rightRecords, $depth + 1);
+                $split->rightLeaf = $this->getSplitLeaf($rightRecords, $depth + 1);
             }
         }
         return $split;
@@ -143,7 +143,7 @@ 
         $samples = array_combine($records, $this->preprocess($samples));
         $bestGiniVal = 1;
         $bestSplit = null;
-        for ($i=0; $i<$this->featureCount; $i++) {
+        for ($i = 0; $i < $this->featureCount; $i++) {
             $colValues = [];
             $baseValue = null;
             foreach ($samples as $index => $row) {
@@ -183,7 +183,7 @@ 
             $countMatrix[$label][$rowIndex]++;
         }
         $giniParts = [0, 0];
-        for ($i=0; $i<=1; $i++) {
+        for ($i = 0; $i <= 1; $i++) {
             $part = 0;
             $sum = array_sum(array_column($countMatrix, $i));
             if ($sum > 0) {
@@ -205,7 +205,7 @@ 
         // Detect and convert continuous data column values into
         // discrete values by using the median as a threshold value
         $columns = [];
-        for ($i=0; $i<$this->featureCount; $i++) {
+        for ($i = 0; $i < $this->featureCount; $i++) {
             $values = array_column($samples, $i);
             if ($this->columnTypes[$i] == self::CONTINUOS) {
                 $median = Mean::median($values);

src/Phpml/Classification/DecisionTree/DecisionTreeLeaf.php

Spacing +11 added lines, -11 removed lines

@@ -1,5 +1,5 @@ 
 <?php
-declare(strict_types=1);
+declare(strict_types = 1);
 
 namespace Phpml\Classification\DecisionTree;
 
@@ -24,7 +24,7 @@ 
     /**
      * @var DecisionTreeLeaf
      */
-    public $rightLeaf= null;
+    public $rightLeaf = null;
 
     /**
      * @var array
@@ -63,7 +63,7 @@ 
         $recordField = $record[$this->columnIndex];
         if (preg_match("/^([<>=]{1,2})\s*(.*)/", $this->value, $matches)) {
             $op = $matches[1];
-            $value= floatval($matches[2]);
+            $value = floatval($matches[2]);
             $recordField = strval($recordField);
             eval("\$result = $recordField $op $value;");
             return $result;
@@ -78,25 +78,25 @@ 
         } else {
             $value = $this->value;
             $col = "col_$this->columnIndex";
-            if (! preg_match("/^[<>=]{1,2}/", $value)) {
+            if (!preg_match("/^[<>=]{1,2}/", $value)) {
                 $value = "=$value";
             }
-            $value = "<b>$col $value</b><br>Gini: ". number_format($this->giniIndex, 2);
+            $value = "<b>$col $value</b><br>Gini: ".number_format($this->giniIndex, 2);
         }
         $str = "<table ><tr><td colspan=3 align=center style='border:1px solid;'>
 				$value</td></tr>";
         if ($this->leftLeaf || $this->rightLeaf) {
-            $str .='<tr>';
+            $str .= '<tr>';
             if ($this->leftLeaf) {
-                $str .="<td valign=top><b>| Yes</b><br>$this->leftLeaf</td>";
+                $str .= "<td valign=top><b>| Yes</b><br>$this->leftLeaf</td>";
             } else {
-                $str .='<td></td>';
+                $str .= '<td></td>';
             }
-            $str .='<td>&nbsp;</td>';
+            $str .= '<td>&nbsp;</td>';
             if ($this->rightLeaf) {
-                $str .="<td valign=top align=right><b>No |</b><br>$this->rightLeaf</td>";
+                $str .= "<td valign=top align=right><b>No |</b><br>$this->rightLeaf</td>";
             } else {
-                $str .='<td></td>';
+                $str .= '<td></td>';
             }
             $str .= '</tr>';
         }

src/Phpml/Transformer.php

Spacing +1 added lines, -1 removed lines

@@ -1,6 +1,6 @@
 <?php
 
-declare(strict_types=1);
+declare(strict_types = 1);
 
 namespace Phpml;
 

src/Phpml/CrossValidation/RandomSplit.php

Spacing +1 added lines, -1 removed lines

@@ -1,6 +1,6 @@
 <?php
 
-declare(strict_types=1);
+declare(strict_types = 1);
 
 namespace Phpml\CrossValidation;
 

src/Phpml/CrossValidation/StratifiedRandomSplit.php

Spacing +1 added lines, -1 removed lines

@@ -1,6 +1,6 @@
 <?php
 
-declare(strict_types=1);
+declare(strict_types = 1);
 
 namespace Phpml\CrossValidation;
 

src/Phpml/SupportVectorMachine/Kernel.php

Spacing +1 added lines, -1 removed lines

@@ -1,6 +1,6 @@
 <?php
 
-declare(strict_types=1);
+declare(strict_types = 1);
 
 namespace Phpml\SupportVectorMachine;
 

src/Phpml/SupportVectorMachine/Type.php

Spacing +1 added lines, -1 removed lines

@@ -1,6 +1,6 @@
 <?php
 
-declare(strict_types=1);
+declare(strict_types = 1);
 
 namespace Phpml\SupportVectorMachine;
 

src/Phpml/SupportVectorMachine/DataTransformer.php

Spacing +1 added lines, -1 removed lines

@@ -1,6 +1,6 @@
 <?php
 
-declare(strict_types=1);
+declare(strict_types = 1);
 
 namespace Phpml\SupportVectorMachine;
 

src/Phpml/Tokenization/Tokenizer.php

Spacing +1 added lines, -1 removed lines

@@ -1,6 +1,6 @@
 <?php
 
-declare(strict_types=1);
+declare(strict_types = 1);
 
 namespace Phpml\Tokenization;