Update app.py

app.py

@@ -4,6 +4,7 @@ from collections import defaultdict
 import streamlit as st
 import streamlit.components.v1 as components
 import plotly.express as px
+import numpy as np
 
 
 st.set_page_config(page_title='Can you be truly random ?', layout = 'wide', page_icon = 'favicon.jpg', initial_sidebar_state = 'auto')
@@ -113,7 +114,16 @@ def user_select(i,choice):
         update_pnl(user_win=True)
     
     refresh_preds()
-    
+
+def compute_perf():
+    data = np.array(st.session_state.pnl)
+    if len(data) > 1:
+        data = data[1:] - data[:-1]
+        perf = data.mean()
+        std = data.std()
+        win = (data>0).mean()
+        sharpe = perf / std
+        return f'%age win={win:.2%} Sharpe={sharpe:.2f}'
     
 
 if st.session_state.stage == 1:
@@ -125,7 +135,7 @@ if st.session_state.stage == 1:
         col.button(str(i),on_click=user_select, args=[str(i),choice],
         use_container_width=True)
 
-    st.title('My earnings so far... :-)')
+    st.title(f'My earnings so far... {compute_perf()} :-)')
     st.plotly_chart(px.line(st.session_state.pnl), use_container_width=True)
     
     st.button('Start over', on_click=reset_game, args=[],