Update app.py

app.py

@@ -446,13 +446,13 @@ def server(input, output, session):
                     'z0': 'vRel',
                     'tj_stuff_plus': 'tjStuff+'
                 }))
-        brushed_df_final = brushed_df_final.with_columns(
+        
+        brushed_df_final.with_columns(
             pl.when(pl.col("Spin").is_not_null())
-              .then(pl.col("Spin").round(0))
+              .then(pl.col("Spin").cast(pl.Float64).round(0))
               .otherwise(0)
               .alias("Spin")
         )
-
         
         # brushed_df_final = brushed_df_final