Fix against_all_wins calc

src/analyze_yahoo.py

@@ -17,7 +17,7 @@ def calculate_luck(df: pd.DataFrame, as_of_week: Optional[int] = None, include_c
         if len(df_week) != n_teams:
             next
         else:
-            df_week["against_all_wins"] = ((df_week.team_points.rank().astype("float") - 1) / n_teams).round(2)
+            df_week["against_all_wins"] = ((df_week.team_points.rank().astype("float") - 1) / (n_teams - 1)).round(2)
             df_week["against_all_losses"] = 1 - df_week["against_all_wins"]
             df_week["half_wins"] = (df_week["against_all_wins"] >= 0.5) * 1.0
             df_week["half_losses"] = 1 - df_week["half_wins"]