New Updated

app.py

@@ -33,4 +33,293 @@ def preprocess_input(input_data):
     final_df = pd.concat([input_encoded_df, input_scaled_df], axis=1)
     final_df = final_df.reindex(columns=original_feature_names, fill_value=0)
 
-    return final_df
+    return final_df
+
+
+original_feature_names = ['MONTANT', 'FREQUENCE_RECH', 'REVENUE', 'ARPU_SEGMENT', 'FREQUENCE',
+                          'DATA_VOLUME', 'ON_NET', 'ORANGE', 'TIGO', 'ZONE1', 'ZONE2', 'REGULARITY', 'FREQ_TOP_PACK',
+                          'REGION_DAKAR', 'REGION_DIOURBEL', 'REGION_FATICK', 'REGION_KAFFRINE', 'REGION_KAOLACK',
+                          'REGION_KEDOUGOU', 'REGION_KOLDA', 'REGION_LOUGA', 'REGION_MATAM', 'REGION_SAINT-LOUIS',
+                          'REGION_SEDHIOU', 'REGION_TAMBACOUNDA', 'REGION_THIES', 'REGION_ZIGUINCHOR',
+                          'TENURE_Long-term', 'TENURE_Medium-term', 'TENURE_Mid-term', 'TENURE_Short-term',
+                          'TENURE_Very short-term', 'TOP_PACK_VAS', 'TOP_PACK_data', 'TOP_PACK_international',
+                          'TOP_PACK_messaging', 'TOP_PACK_other_services', 'TOP_PACK_social_media',
+                          'TOP_PACK_voice']
+
+# Set up the Streamlit app
+st.set_page_config(layout="wide")
+
+# Main page - Churn Prediction
+st.title('CUSTOMER CHURN PREDICTION APP ')
+
+# Main page - Churn Prediction
+st.markdown("Churn is a one of the biggest problem in the telecom industry. Research has shown that the average monthly churn rate among the top 4 wireless carriers in the US is 1.9% - 2%")
+st.image("bg.png", use_column_width=True)
+
+    # How to use
+st.sidebar.image("welcome.jpg", use_column_width=True)
+st.sidebar.title("ENTER THE DETAILS OF THE CUSTOMER HERE")
+
+# Define a dictionary of models with their names, actual models, and types
+models = {
+    'Logistic Regression': {'Logistic Regression': lr_model, 'type': 'logistic_regression'},
+    #'ComplementNB': {'ComplementNB': cnb_model, 'type': 'Complement NB'}
+}
+
+# Allow the user to select a model from the sidebar
+model_name = st.sidebar.selectbox('Select Model', list(models.keys()))
+
+# Retrieve the selected model and its type from the dictionary
+model = models[model_name]['Logistic Regression']
+model_type = models[model_name]['type']
+
+
+# Collect input from the user
+st.sidebar.title('Enter Customer Details')
+input_features = {
+    'MONTANT': st.sidebar.number_input('Top-up Amount (MONTANT)'),
+    'FREQUENCE_RECH': st.sidebar.number_input('Number of Times the Customer Refilled (FREQUENCE_RECH)'),
+    'REVENUE': st.sidebar.number_input('Monthly income of the client (REVENUE)'),
+    'ARPU_SEGMENT': st.sidebar.number_input('Income over 90 days / 3 (ARPU_SEGMENT)'),
+    'FREQUENCE': st.sidebar.number_input('Number of times the client has made an income (FREQUENCE)'),
+    'DATA_VOLUME': st.sidebar.number_input('Number of Connections (DATA_VOLUME)'),
+    'ON_NET': st.sidebar.number_input('Inter Expresso Call (ON_NET)'),
+    'ORANGE': st.sidebar.number_input('Call to Orange (ORANGE)'),
+    'TIGO': st.sidebar.number_input('Call to Tigo (TIGO)'),
+    'ZONE1': st.sidebar.number_input('Call to Zone 1 (ZONE1)'),
+    'ZONE2': st.sidebar.number_input('Call to Zone 2 (ZONE2)'),
+    'REGULARITY': st.sidebar.number_input('Number of Times the Client is Active for 90 Days (REGULARITY)'),
+    'FREQ_TOP_PACK': st.sidebar.number_input('Number of Times the Client has Activated the Top Packs (FREQ_TOP_PACK)'),
+    'REGION': st.sidebar.selectbox('Location of Each Client (REGION)', ['DAKAR','DIOURBEL','FATICK','AFFRINE','KAOLACK',
+                                                                        'KEDOUGOU','KOLDA','LOUGA','MATAM','SAINT-LOUIS',
+                                                                        'SEDHIOU','TAMBACOUNDA','HIES','ZIGUINCHOR' ]),
+                                                                       
+    'TENURE': st.sidebar.selectbox('Duration in the Network (TENURE)', ['Long-term','Medium-term','Mid-term','Short-term',
+                                                                       'Very short-term']),
+    'TOP_PACK': st.sidebar.selectbox('Most Active Pack (TOP_PACK)', ['VAS', 'data', 'international', 
+                                                                     'messaging','other_services', 'social_media',
+                                                                     'voice'])
+                                                                      
+}
+
+# Input validation
+valid_input = True
+error_messages = []
+
+# Validate numeric inputs
+numeric_ranges = {
+    'MONTANT': [0, 1000000],
+    'FREQUENCE_RECH': [0, 100],
+    'REVENUE': [0, 1000000],
+    'ARPU_SEGMENT': [0, 100000],
+    'FREQUENCE': [0, 100],
+    'DATA_VOLUME': [0, 100000],
+    'ON_NET': [0, 100000],
+    'ORANGE': [0, 100000],
+    'TIGO': [0, 100000],
+    'ZONE1': [0, 100000],
+    'ZONE2': [0, 100000],
+    'REGULARITY': [0, 100],
+    'FREQ_TOP_PACK': [0, 100]
+}
+
+for feature, value in input_features.items():
+    range_min, range_max = numeric_ranges.get(feature, [None, None])
+    if range_min is not None and range_max is not None:
+        if not range_min <= value <= range_max:
+            valid_input = False
+            error_messages.append(f"{feature} should be between {range_min} and {range_max}.")
+
+#Churn Prediction
+
+def predict_churn(input_data, model):
+    # Preprocess the input data
+    preprocessed_data = preprocess_input(input_data)
+
+     # Calculate churn probabilities using the model
+    probabilities = model.predict_proba(preprocessed_data)
+
+    # Determine churn labels based on the model type
+    if model_type == "logistic_regression":
+        churn_labels = ["No Churn", "Churn"]
+    #elif model_type == "ComplementNB":
+        churn_labels = ["Churn", "No Churn"]
+    # Extract churn probability for the first sample
+    churn_probability = probabilities[0]
+
+    # Create a dictionary mapping churn labels to their indices
+    churn_indices = {label: idx for idx, label in enumerate(churn_labels)}
+
+    # Determine the index with the highest churn probability
+    churn_index = np.argmax(churn_probability)
+
+    # Return churn labels, churn probabilities, churn indices, and churn index
+    return churn_labels, churn_probability, churn_indices, churn_index
+
+# Predict churn based on user input
+if st.sidebar.button('Predict Churn'):
+    try:
+        with st.spinner("Wait, Results loading..."):
+        # Simulate a long-running process
+            progress_bar = st.progress(0)
+            step = 20  # A big step will reduce the execution time
+            for i in range(0, 100, step):
+                time.sleep(0.1)
+                progress_bar.progress(i + step)
+
+                #churn_labels, churn_probability = predict_churn(input_features, model)  # Pass model1 or model2 based on the selected model
+        churn_labels, churn_probability, churn_indices, churn_index = predict_churn(input_features, model)
+
+        st.subheader('CHURN PREDICTION RESULTS')
+
+
+
+        col1, col2 = st.columns(2)
+
+        if churn_labels[churn_index] == "Churn":
+            churn_prob = churn_probability[churn_index]
+            with col1:
+                st.error(f"CHURN ALERT! This customer is likely to churn with a probability of {churn_prob * 100:.2f}% 😢")
+                resized_churn_image = Image.open('Churn.jpeg')
+                resized_churn_image = resized_churn_image.resize((350, 300))  # Adjust the width and height as desired
+                st.image(resized_churn_image)
+                # Add suggestions for retaining churned customers in the 'Churn' group 
+            with col2:
+                st.info("ADVICE TO EXPRESSOR MANAGEMENT:\n"
+                    "- Identify Reasons for Churn\n"
+                    "- Offer Incentives\n"
+                    "- Showcase Improvements\n"
+                    "- Gather Feedback\n"
+                    "- Customer Surveys\n"
+                    "- Personalized Recommendations\n"
+                    "- Reestablish Trust\n"
+                    "- Follow-Up Communication\n"
+                    "- Reactivation Campaigns\n"
+                    "- Improve product or service offerings based on customer feedback\n"
+                    " SUMMARY NOTE\n"
+                    "- Remember that winning back churning customers takes time and persistence.\n" 
+                    "- It\s crucial to genuinely address their concerns and provide value to rebuild their trust in your business\n" 
+                    "- Regularly evaluate the effectiveness of your strategies and adjust them as needed based on customer responses and feedback\n")
+        else:
+            #churn_index = churn_indices["No Churn"]
+            churn_prob = churn_probability[churn_index]
+            with col1:
+                st.success(f"This customer is not likely to churn with a probability of {churn_prob * 100:.2f}% 😀")
+                resized_not_churn_image = Image.open('NotChurn.jpeg')
+                resized_not_churn_image = resized_not_churn_image.resize((350, 300))  # Adjust the width and height as desired
+                st.image(resized_not_churn_image)
+                # Add suggestions for retaining churned customers in the 'Churn' group
+            with col2:
+                st.info("ADVICE TO EXPRESSOR MANAGEMENT\n"
+                    "- Quality Products/Services\n"
+                    "- Personalized Experience\n"
+                    "- Loyalty Programs\n"
+                    "- Excellent Customer Service\n"
+                    "- Exclusive Content\n"
+                    "- Early Access\n"
+                    "- Personal Thank-You Notes\n"
+                    "- Surprise Gifts or Discounts\n"
+                    "- Feedback Opportunities\n"
+                    "- Community Engagement\n"
+                    "- Anniversary Celebrations\n"
+                    "- Refer-a-Friend Programs\n"
+                    "SUMMARY NOTE\n" 
+                    "- Remember that the key to building lasting loyalty is consistency.\n" 
+                    "- Continuously demonstrate your commitment to meeting customers needs and enhancing their experience.\n"
+                    "- Regularly assess the effectiveness of your loyalty initiatives and adapt them based on customer feedback and preferences.")
+
+        st.subheader('Churn Probability')
+
+        # Create a donut chart to display probabilities
+        fig = go.Figure(data=[go.Pie(
+            labels=churn_labels,
+            values=churn_probability,
+            hole=0.5,
+            textinfo='label+percent',
+            marker=dict(colors=['#FFA07A', '#6495ED', '#FFD700', '#32CD32', '#FF69B4', '#8B008B']))])
+
+        fig.update_traces(
+            hoverinfo='label+percent',
+            textfont_size=12,
+            textposition='inside',
+            texttemplate='%{label}: %{percent:.2f}%'
+            )
+
+        fig.update_layout(
+            title='Churn Probability',
+            title_x=0.5,
+            showlegend=False,
+            width=500,
+            height=500
+            )
+
+        st.plotly_chart(fig, use_container_width=True)
+
+        # Calculate the average churn rate (replace with your actual value)
+
+        st.subheader('Customer Churn Probability Comparison')
+
+        average_churn_rate = 19
+
+        # Convert the overall churn rate to churn probability
+        main_data_churn_probability = average_churn_rate / 100
+
+        # Retrieve the predicted churn probability for the selected customer
+        predicted_churn_prob = churn_probability[churn_index]
+
+        if churn_labels[churn_index] == "Churn":
+            churn_prob = churn_probability[churn_index]
+            # Create a bar chart comparing the churn probability with the average churn rate
+            labels = ['Churn Probability', 'Average Churn Probability']
+            values = [predicted_churn_prob, main_data_churn_probability]
+
+            fig = go.Figure(data=[go.Bar(x=labels, y=values)])
+            fig.update_layout(
+                xaxis_title='Churn Probability',
+                yaxis_title='Probability',
+                title='Comparison with Average Churn Rate',
+                yaxis=dict(range=[0, 1])  # Set the y-axis limits between 0 and 1
+            )
+
+            # Add explanations
+            if predicted_churn_prob > main_data_churn_probability:
+                churn_comparison = "higher"
+            elif predicted_churn_prob < main_data_churn_probability:
+                churn_comparison = "lower"
+            else:
+                churn_comparison = "equal"
+
+            explanation = f"This bar chart compares the churn probability of the selected customer " \
+                            f"with the average churn rate of all customers. It provides insights into how the " \
+                            f"individual customer's churn likelihood ({predicted_churn_prob:.2f}) compares to the " \
+                            f"overall trend. The 'Churn Probability' represents the likelihood of churn " \
+                            f"for the selected customer, while the 'Average Churn Rate' represents the average " \
+                            f"churn rate across all customers ({main_data_churn_probability:.2f}).\n\n" \
+                            f"The customer's churn rate is {churn_comparison} than the average churn rate."
+
+            st.plotly_chart(fig)
+            st.write(explanation)
+        else:
+    # Create a bar chart comparing the no-churn probability with the average churn rate
+            labels = ['No-Churn Probability', 'Average Churn Probability']
+            values = [1 - predicted_churn_prob, main_data_churn_probability]
+
+            fig = go.Figure(data=[go.Bar(x=labels, y=values)])
+            fig.update_layout(
+                xaxis_title='Churn Probability',
+                yaxis_title='Probability',
+                title='Comparison with Average Churn Rate',
+                yaxis=dict(range=[0, 1])  # Set the y-axis limits between 0 and 1
+            )
+
+            explanation = f"This bar chart compares the churn probability of the selected customer " \
+                            f"with the average churn rate of all customers. It provides insights into how the " \
+                            f"individual customer's churn likelihood ({predicted_churn_prob:.2f}) compares to the " \
+                            f"overall trend." \
+                            f"The prediction indicates that the customer is not likely to churn. " \
+                        f"The churn probability is lower than the no-churn probability."
+
+            st.plotly_chart(fig)
+            st.write(explanation)
+    except Exception as e:
+        st.error(f"An error occurred: {str(e)}")