php-ai / php-ml

src/Classification/Linear/LogisticRegression.php

Spacing +2 added lines, -2 removed lines

@@ -188,7 +188,7 @@ 
                  * The gradient of the cost function to be used with gradient descent:
                  *		∇J(x) = -(y - h(x)) = (h(x) - y)
                  */
-                return function ($weights, $sample, $y) use ($penalty): array {
+                return function($weights, $sample, $y) use ($penalty): array {
                     $this->weights = $weights;
                     $hX = $this->output($sample);
 
@@ -220,7 +220,7 @@ 
                  * The gradient of the cost function:
                  *		∇J(x) = -(h(x) - y) . h(x) . (1 - h(x))
                  */
-                return function ($weights, $sample, $y) use ($penalty): array {
+                return function($weights, $sample, $y) use ($penalty): array {
                     $this->weights = $weights;
                     $hX = $this->output($sample);
 

src/Regression/DecisionTreeRegressor.php

Spacing +1 added lines, -1 removed lines

@@ -121,7 +121,7 @@
 
     protected function splitImpurity(array $groups): float
     {
-        $samplesCount = (int) array_sum(array_map(static function (array $group): int {
+        $samplesCount = (int) array_sum(array_map(static function(array $group): int {
             return count($group[0]);
         }, $groups));