diff --git a/dataset.go b/dataset.go
index 1f74b69..5ace1a8 100644
--- a/dataset.go
+++ b/dataset.go
@@ -69,7 +69,7 @@ func buildDataset(kl []Kline, lookback int, valSplit float64) (Dataset, Dataset)
 	if trainN < 1 {
 		// fallback minimo: tutto train meno 1 per val
 		trainN = max(1, len(X)-1)
-		valN = len(X) - trainN
+		//		valN = len(X) - trainN
 	}
 
 	// 5) mean/std SOLO sul training (sulle feature)