create Classifire interface

src/Phpml/Classification/NaiveBayes.php

@@ -1,8 +0,0 @@
-<?php
-
-namespace Phpml\Classification;
-
-class NaiveBayes
-{
-
-}

src/Phpml/Classifier/Classifier.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace Phpml\Classifier;
+
+interface Classifier
+{
+
+    /**
+     * @param array $features
+     * @param array $labels
+     */
+    public function train($features, $labels);
+
+    /**
+     * @param mixed $feature
+     * @return mixed
+     */
+    public function predict($feature);
+
+}

src/Phpml/Classifier/NaiveBayes.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace Phpml\Classifier;
+
+class NaiveBayes implements Classifier
+{
+
+    /**
+     * @param array $features
+     * @param array $labels
+     */
+    public function train($features, $labels)
+    {
+
+    }
+
+    /**
+     * @param mixed $feature
+     * @return mixed
+     */
+    public function predict($feature)
+    {
+
+    }
+
+}