Version 1 hotfix #21 for merge

app.py

@@ -192,6 +192,7 @@ def merge_forecast_data(actual, predicted, future):
     future.rename(columns={future.columns[0]: "Future Forecasted Sales"}, inplace=True)
 
     merged_dataframe = pd.concat([actual, predicted, future], axis=1)
+    merged_dataframe = merged_dataframe.fillna(-1)
     merged_dataframe = merged_dataframe.reset_index()
     return merged_dataframe
 
@@ -265,7 +266,7 @@ if 'forecasted' not in st.session_state:
 # Web Application
 st.title("Forecasting Dashboard 📈")
 if not st.session_state.uploaded:
-  st.subheader("Welcome User, start forecasting by uploading your file in the sidebar!")
+  st.subheader("Welcome User, get started forecasting by uploading your file in the sidebar!")
 
 # Sidebar Menu
 with st.sidebar: