devfym / intelliphp

src/Math/Correlation.php

Spacing +3 added lines, -3 removed lines

@@ -133,12 +133,12 @@ 
         $concordant = [];
         $discordant = [];
 
-        for ($i = 0; $i < $df->getIndex(); $i ++) {
+        for ($i = 0; $i < $df->getIndex(); $i++) {
 
             $concordant_count = 0;
             $discordant_count = 0;
 
-            for ($j = $i+1; $j < $df->getIndex(); $j ++) {
+            for ($j = $i + 1; $j < $df->getIndex(); $j++) {
 
                 if ($df->{$xColumn}->get($i) < $df->{$xColumn}->get($j)) {
 
@@ -161,7 +161,7 @@ 
         $scon = array_sum($concordant);
         $sdis = array_sum($discordant);
 
-        $t = ($scon - $sdis) / ($df->getIndex() * ($df->getIndex() - 1)  / 2);
+        $t = ($scon - $sdis) / ($df->getIndex() * ($df->getIndex() - 1) / 2);
 
         return round($t, 4);
     }

src/Data/DataFrame.php

Spacing +2 added lines, -2 removed lines

@@ -37,7 +37,7 @@ 
 
         $arr = array_map(null, ...$arr);
 
-        foreach($columns as $index => $column) {
+        foreach ($columns as $index => $column) {
             $arr[$column] = $arr[$index];
             unset($arr[$index]);
         }
@@ -85,7 +85,7 @@ 
 
         $numeric = [];
 
-        foreach($columns as $col) {
+        foreach ($columns as $col) {
             if ($this->{$col}->dataType() == 'Numeric') {
                 array_push($numeric, $col);
             }

src/Data/Series.php

Indentation +2 added lines, -2 removed lines

@@ -111,7 +111,7 @@ 
      */
     public function max($floatPoint = 2) : float
     {
-       // Initialize max value with 1st index of $Sample.
+        // Initialize max value with 1st index of $Sample.
         $max = $this->Sample[0];
 
         for ($i = 1; $i < $this->SampleCount; $i++) {
@@ -173,7 +173,7 @@ 
      */
     public function median($floatPoint = 2) : float
     {
-       return $this->quartile(2, $floatPoint);
+        return $this->quartile(2, $floatPoint);
     }
 
     /**

Spacing +1 added lines, -1 removed lines

@@ -191,7 +191,7 @@
 
         $total_s = 0;
 
-        foreach($this->Sample as $s) {
+        foreach ($this->Sample as $s) {
             if (!is_null($s)) {
                 $total_s += pow(($s - $mean), 2);
             }