change vnquant to vnstock

app.py

@@ -45,9 +45,13 @@ class TS:
                             start_date=start_date, 
                             end_date=end_date, resolution='1D', type='stock')
         pdf = pd.DataFrame()
-        pdf['ds'] = data.index 
+        pdf['ds'] = data["time"]
         pdf['ds'] = pd.to_datetime(pdf['ds'])
-        pdf['y'] = data.close.values
+        pdf["open"] = data["open"]
+        pdf["close"] = data["close"]
+        pdf["high"] = data["high"]
+        pdf["low"] = data["low"]
+        pdf['y'] = data.close
         return pdf
     def prophet(self, period = 28):
         df = self.get_data()
@@ -58,10 +62,14 @@ class TS:
         return self.viz(df, forecast)
     def viz(self, data, future):
         fig = go.Figure()
-        fig.add_trace(go.Scatter(x= data.ds, 
-                                y=data.y,
-                                name = f"{self.symbol}"
-                                ))
+        fig.add_trace(go.Candlestick(x = data["time"],
+                                     open = data["open"],
+                                     high = data["high"],
+                                     low = data["low"],
+                                     close = data["close"]
+                                     name = f"{self.symbol}"
+
+            ))
         fig.add_trace(go.Scatter(x= future.ds, 
                                      y=future.yhat,
                                      name = f"{self.symbol}_pred"