diff --git a/dataloader.py b/dataloader.py
index edbb7f8e89c24ca49707ff325493bc9dc870ba53..2ccd88c69e44b9f811a64eddabc94cf994f7a0e4 100644
--- a/dataloader.py
+++ b/dataloader.py
@@ -255,6 +255,7 @@ class dataloader:
                 self.df = pd.merge(self.df, r_df, how="left")
             else:
                 self.df = r_df
+        print(f" data size is {self.df.shape}")
         # define ids
         self.ids = list(self.df.id.unique())
         if not use_tsv: