Upload app.py

app.py

@@ -1,6 +1,6 @@
 import streamlit as st
 
-# Custom CSS for styling
+# Custom CSS for styling and to hide slider min/max labels
 css = """
 <style>
     .criteria-name {
@@ -13,11 +13,12 @@ css = """
         color: #555;
         margin-bottom: 12px;
     }
+    /* Remove line separators between criteria */
     .subcriteria {
         margin-bottom: 20px;
         padding: 10px;
-        border-bottom: 1px solid #eee;
     }
+    /* Group header styling with separator */
     .category-header {
         margin-top: 30px;
         margin-bottom: 10px;
@@ -30,6 +31,11 @@ css = """
         text-align: center;
         margin-bottom: 30px;
     }
+    /* Hide slider min and max labels */
+    div[data-baseweb="slider"] > div > div:first-child,
+    div[data-baseweb="slider"] > div > div:last-child {
+        display: none;
+    }
 </style>
 """
 st.markdown(css, unsafe_allow_html=True)
@@ -81,8 +87,8 @@ criteria = {
 }
 
 def calculate_score(ratings):
-    # Exclude ratings of 0 (0 means not rated)
-    valid = [r for r in ratings if r and r > 0]
+    # Filter out None values (i.e. criteria marked as N/A)
+    valid = [r for r in ratings if r is not None]
     if not valid:
         return "Please rate at least one criterion."
     avg = sum(valid) / len(valid)
@@ -104,10 +110,15 @@ for group, subcriteria in criteria.items():
             <div class='criteria-description'>{crit['description']}</div>
         </div>
         """, unsafe_allow_html=True)
-        # Use a slider for rating (0 means not rated)
-        key = f"{group}_{idx}"
-        rating = st.slider(f"Rate {crit['name']} (0-7)", 0, 7, 0, key=key)
-        ratings.append(rating)
+        # Create two columns: one for the slider and one for the N/A checkbox
+        cols = st.columns([4, 1])
+        na_key = f"na_{group}_{idx}"
+        slider_key = f"slider_{group}_{idx}"
+        na = cols[1].checkbox("N/A", key=na_key)
+        # Slider from 1 to 7 with default value 4; disabled (grayed-out) if N/A is ticked.
+        rating = cols[0].slider("", 1, 7, 4, key=slider_key, disabled=na)
+        # Use None to denote a nullified rating
+        ratings.append(None if na else rating)
 
 if st.button("Calculate Score"):
     result = calculate_score(ratings)