Update app.py

app.py

@@ -13,6 +13,10 @@ def fetch_alpha_vantage_data(api_key):
     return alpha_vantage_data
 
 def calculate_indicators(data):
+    # Convert relevant columns to numeric
+    numeric_columns = ['open', 'high', 'low', 'close']
+    data[numeric_columns] = data[numeric_columns].apply(pd.to_numeric, errors='coerce')
+
     # Example: Simple condition for doji and inside
     data['Doji'] = abs(data['close'] - data['open']) <= 0.01 * (data['high'] - data['low'])
     data['Inside'] = (data['high'] < data['high'].shift(1)) & (data['low'] > data['low'].shift(1))