php-ai / php-ml

src/FeatureExtraction/TokenCountVectorizer.php

Spacing +1 added lines, -1 removed lines

@@ -48,7 +48,7 @@
 
     public function transform(array &$samples, ?array &$targets = null): void
     {
-        array_walk($samples, function (string &$sample): void {
+        array_walk($samples, function(string &$sample): void {
             $this->transformSample($sample);
         });
 

src/Preprocessing/ColumnFilter.php

Spacing +2 added lines, -2 removed lines

@@ -18,10 +18,10 @@
 
     public function __construct(array $datasetColumns, array $filterColumns)
     {
-        $this->datasetColumns = array_map(static function (string $column): string {
+        $this->datasetColumns = array_map(static function(string $column): string {
             return $column;
         }, $datasetColumns);
-        $this->filterColumns = array_map(static function (string $column): string {
+        $this->filterColumns = array_map(static function(string $column): string {
             return $column;
         }, $filterColumns);
     }

src/FeatureUnion.php

Spacing +1 added lines, -1 removed lines

@@ -22,7 +22,7 @@
             throw new InvalidArgumentException('At least one pipeline is required');
         }
 
-        $this->pipelines = array_map(static function (Pipeline $pipeline): Pipeline {
+        $this->pipelines = array_map(static function(Pipeline $pipeline): Pipeline {
             return $pipeline;
         }, $pipelines);
     }

src/Pipeline.php

Spacing +1 added lines, -1 removed lines

@@ -23,7 +23,7 @@
      */
     public function __construct(array $transformers, ?Estimator $estimator = null)
     {
-        $this->transformers = array_map(static function (Transformer $transformer): Transformer {
+        $this->transformers = array_map(static function(Transformer $transformer): Transformer {
             return $transformer;
         }, $transformers);
         $this->estimator = $estimator;

src/Math/Statistic/ANOVA.php

Spacing +5 added lines, -5 removed lines

@@ -28,7 +28,7 @@ 
             throw new InvalidArgumentException('The array must have at least 2 elements');
         }
 
-        $samplesPerClass = array_map(function (array $class): int {
+        $samplesPerClass = array_map(function(array $class): int {
             return count($class);
         }, $samples);
         $allSamples = (int) array_sum($samplesPerClass);
@@ -41,10 +41,10 @@ 
         $dfbn = $classes - 1;
         $dfwn = $allSamples - $classes;
 
-        $msb = array_map(function ($s) use ($dfbn) {
+        $msb = array_map(function($s) use ($dfbn) {
             return $s / $dfbn;
         }, $ssbn);
-        $msw = array_map(function ($s) use ($dfwn) {
+        $msw = array_map(function($s) use ($dfwn) {
             if ($dfwn === 0) {
                 return 1;
             }
@@ -76,7 +76,7 @@ 
 
     private static function sumOfFeaturesPerClass(array $samples): array
     {
-        return array_map(function (array $class) {
+        return array_map(function(array $class) {
             $sum = array_fill(0, count($class[0]), 0);
             foreach ($class as $sample) {
                 foreach ($sample as $index => $feature) {
@@ -97,7 +97,7 @@ 
             }
         }
 
-        return array_map(function ($sum) {
+        return array_map(function($sum) {
             return $sum ** 2;
         }, $squares);
     }

src/FeatureExtraction/TfIdfTransformer.php

Spacing +2 added lines, -2 removed lines

@@ -57,7 +57,7 @@ 
 
         $count = count($samples);
         $this->idf = array_map(
-            function (float $value) use ($count): float {
+            function(float $value) use ($count): float {
                 return $value > 0.0
                     ? log($count / $value, 10)
                     : 0;
@@ -68,7 +68,7 @@ 
 
     public function transform(array &$samples, ?array &$targets = null): void
     {
-        array_walk($samples, function (array &$sample): void {
+        array_walk($samples, function(array &$sample): void {
             foreach ($sample as $index => &$feature) {
                 if ($this->termCounts[$index] < $this->minTf || $this->idf[$index] < $this->minIdf) {
                     unset($sample[$index]);