diff --git a/mini-batch-sgd-logistic-regression-wdbc.py b/mini-batch-sgd-logistic-regression-wdbc.py
index 3604a37..652f108 100644
--- a/mini-batch-sgd-logistic-regression-wdbc.py
+++ b/mini-batch-sgd-logistic-regression-wdbc.py
@@ -86,7 +86,7 @@ class LogisticRegression:
 
                 x_batch = self.x[idx]
                 y_batch = self.y[idx]
-
+                # it returns X and Y batch values from a randomly permuted indices from start to end
 
                 z = x_batch.dot(self.w)
                 p = self.sigmoid(z)