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 = ['4. close', '1. open', '2. high', '3. low']
+    data[numeric_columns] = data[numeric_columns].apply(pd.to_numeric, errors='coerce')
+
     # Example: Simple condition for doji and inside
     data['Doji'] = abs(data['4. close'] - data['1. open']) <= 0.01 * (data['2. high'] - data['3. low'])
     data['Inside'] = (data['2. high'] < data['3. high']) & (data['2. low'] > data['3. low'])