Adjust no of train samples

mercosul.py

@@ -21,7 +21,7 @@ def load_data():
     df = df.sample(frac=1, random_state=10)
     x, y = data_prep(df)
 
-    train_samples = int(y.shape[0] * 0.75)
+    train_samples = 1472 # ~75%, multiple of 32 (batch size)
     x_train, x_test = x[:train_samples, :], x[train_samples:, :]
     y_train, y_test = y[:train_samples], y[train_samples:]
     return (x_train, y_train), (x_test, y_test)