From 8af26db16cbdceb40df09cef226c9f4ee84739c4 Mon Sep 17 00:00:00 2001
From: Matthias Guillitte <matthias@guillitte.com>
Date: Sun, 22 Mar 2026 10:42:15 +0100
Subject: [PATCH] Fix gradient descent

---
 app/Models/GradientDescentPerceptronTraining.php | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/app/Models/GradientDescentPerceptronTraining.php b/app/Models/GradientDescentPerceptronTraining.php
index 703aca0..a329cee 100644
--- a/app/Models/GradientDescentPerceptronTraining.php
+++ b/app/Models/GradientDescentPerceptronTraining.php
@@ -54,6 +54,8 @@ class GradientDescentPerceptronTraining extends NetworkTraining
                 $this->addIterationToBuffer($iterationError, [[$this->perceptron->getSynapticWeights()]]);
             }
 
+            $this->epochError /= $this->datasetReader->getEpochExamplesCount(); // Average error for the epoch
+
             // Synaptic weights correction after each epoch
             $synaptic_weights = $this->perceptron->getSynapticWeights();
             $new_weights = array_map(