diff --git a/quapy/classification/methods.py b/quapy/classification/methods.py
index dfbd86f..bf1d8d6 100644
--- a/quapy/classification/methods.py
+++ b/quapy/classification/methods.py
@@ -32,6 +32,7 @@ class PCALR(BaseEstimator):
             self.pca = TruncatedSVD(self.n_components).fit(X, y)
         self.classes_ = self.learner.classes_
         return self
+    
 
     def predict(self, X):
         # X = self.transform(X)