php-ai / php-ml

src/Phpml/Math/Matrix.php

Spacing +2 added lines, -2 removed lines

@@ -147,7 +147,7 @@ 
             for ($j = 0; $j < $this->columns; ++$j) {
                 $subMatrix = $this->crossOut(0, $j);
                 $minor = $this->matrix[0][$j] * $subMatrix->getDeterminant();
-                $determinant += fmod((float)$j, 2.0) == 0 ? $minor : -$minor;
+                $determinant += fmod((float) $j, 2.0) == 0 ? $minor : -$minor;
             }
         }
 
@@ -236,7 +236,7 @@ 
         for ($i = 0; $i < $this->rows; ++$i) {
             for ($j = 0; $j < $this->columns; ++$j) {
                 $minor = $this->crossOut($i, $j)->getDeterminant();
-                $newMatrix[$i][$j] = fmod((float)($i + $j), 2.0) == 0 ? $minor : -$minor;
+                $newMatrix[$i][$j] = fmod((float) ($i + $j), 2.0) == 0 ? $minor : -$minor;
             }
         }
 

src/Phpml/Math/Statistic/Correlation.php

Spacing +2 added lines, -2 removed lines

@@ -30,7 +30,7 @@ 
         $a2 = 0;
         $b2 = 0;
 
-        for ($i = 0;$i < $count;++$i) {
+        for ($i = 0; $i < $count; ++$i) {
             $a = $x[$i] - $meanX;
             $b = $y[$i] - $meanY;
             $axb = $axb + ($a * $b);
@@ -38,7 +38,7 @@ 
             $b2 = $b2 + pow($b, 2);
         }
 
-        $corr = $axb / sqrt((float)($a2 * $b2));
+        $corr = $axb / sqrt((float) ($a2 * $b2));
 
         return $corr;
     }

src/Phpml/Math/Statistic/StandardDeviation.php

Spacing +1 added lines, -1 removed lines

@@ -39,6 +39,6 @@
             --$n;
         }
 
-        return sqrt((float)($carry / $n));
+        return sqrt((float) ($carry / $n));
     }
 }

src/Phpml/Math/Distance/Euclidean.php

Spacing +1 added lines, -1 removed lines

@@ -30,6 +30,6 @@
             $distance += pow($a[$i] - $b[$i], 2);
         }
 
-        return sqrt((float)$distance);
+        return sqrt((float) $distance);
     }
 }

src/Phpml/Clustering/KMeans/Point.php

Spacing +1 added lines, -1 removed lines

@@ -49,7 +49,7 @@
             $distance  += $difference * $difference;
         }
 
-        return $precise ? sqrt((float)$distance) : $distance;
+        return $precise ? sqrt((float) $distance) : $distance;
     }
 
     /**