Update app.py

app.py

@@ -1,4 +1,4 @@
-# app.py 
+# app.py (Final, Robust, and Workable Version with Chained Dropdowns)
 import pandas as pd
 import numpy as np
 import matplotlib.pyplot as plt
@@ -25,7 +25,8 @@ class EnhancedAIvsRealGazeAnalyzer:
         self.correct_answers = {'Pair1': 'B', 'Pair2': 'B', 'Pair3': 'B', 'Pair4': 'B', 'Pair5': 'B', 'Pair6': 'B'}
         self.combined_data = None
         self.fixation_data = {}
-        self.participant_list = []
+        self.valid_playback_participants = []
+        self.valid_playback_trials = {}
         self.model = None
         self.scaler = None
         self.feature_names = []
@@ -34,7 +35,7 @@ class EnhancedAIvsRealGazeAnalyzer:
         participant_col = next((c for c in df.columns if 'participant' in str(c).lower()), None)
         if not participant_col:
             raise ValueError(f"Could not find a 'participant' column in the file: {filename}")
-        df.rename(columns={participant_col: 'participant_id'}, inplace=True)
+        df = df.rename(columns={participant_col: 'participant_id'})
         df['participant_id'] = df['participant_id'].astype(str)
         return df
 
@@ -52,48 +53,9 @@ class EnhancedAIvsRealGazeAnalyzer:
 
         all_metrics_dfs = []
         for q in self.questions:
-            file_path = f"{base_path summary_text, fig, gr.Slider(maximum=slider_max, value=fixation_num, interactive=True)
-    
-    def analyze_rq1_metric(self, metric):
-        if not metric or metric not in self.combined_data.columns: return None, "Metric not found."
-        correct = self.combined_data.loc[self.combined_data['Answer_Correctness'] == 'Correct', metric].dropna()
-        incorrect = self.combined_data.loc[self.combined_data['Answer_Correctness'] == 'Incorrect', metric].dropna()
-        if len(correct) < 2 or len(incorrect) < 2: return None, "Not enough data for both groups to compare."
-        t_stat, p_val = stats.ttest_ind(incorrect, correct, equal_var=False, nan_policy='omit')
-        fig, ax = plt.subplots(figsize=(8, 6)); sns.boxplot(data=self.combined_data, x='Answer_Correctness', y=metric, ax=ax, palette=['#66b3ff','#ff9999']); ax.set_title(f'Comparison of "{metric}" by Answer Correctness', fontsize=14); ax.set_xlabel("Answer Correctness"); ax.set_ylabel(metric); plt.tight_layout()
-        summary = f"""### Analysis for: **{metric}**\n- **Mean (Correct Answers):** {correct.mean():.4f}\n- **Mean (Incorrect Answers):** {incorrect.mean():.4f}\n- **T-test p-value:** {p_val:.4f}\n\n**Conclusion:**\n- {'There is a **statistically significant** difference (p < 0.05).' if p_val < 0.05 else 'There is **no statistically significant** difference (p >= 0.05).'}"""
-        return fig, summary
-
-# --- DATA SETUP & GRADIO APP ---
-def setup_and_load_data():
-    repo_url = "https://github.com/RextonRZ/GenAIEyeTrackingCleanedDataset"
-    repo_dir = "GenAIEyeTrackingCleanedDataset"
-    if not os.path.exists(repo_dir): git.Repo.clone_from(repo_url, repo_dir)
-    else: print("Data repository already exists.")
-    base_path = repo_dir 
-    response_file_path = os.path.join(repo_dir, "GenAI Response.xlsx")
-    analyzer = EnhancedAIvsRealGazeAnalyzer().load_and_process_data(base_path, response_file_path)
-    return analyzer
-
-analyzer = setup_and_load_data()
-
-with gr.Blocks(theme=gr.themes.Soft()) as demo:
-    gr.Markdown("# Interactive Dashboard: AI vs. Real Gaze Analysis")
-    with gr.Tabs() as tabs:
-        with gr.TabItem("📊 RQ1: Viewing Time vs. Correctness", id=0):
-            # ... (UI is the same)
-        with gr.TabItem("🤖 RQ2: Predicting Correctness from Gaze", id=1):
-            with gr.Row():
-                with gr.Column(scale=1):
-                    gr.Markdown("#### Tune Model Hyperparameters")
-                    rq2_test_size_slider=gr.Slider(minimum=0.1, maximum=0.5, step=0.05, value=0.3, label="Test Set Size")
-                    rq2_estimators_slider=gr.Slider(minimum=10, maximum=200, step=10, value=100, label="Number of Trees")
-                    rq2_status = gr.Markdown("Train a model to enable the Gaze Playback tab.")
-                with gr.Column(scale=2):
-                    # ... (UI is the same)
-        with gr.TabItem("👁️ Gaze Playback & Real-Time Prediction", id=2):
-            }/Filtered_GenAI_Metrics_cleaned_{q}.xlsx"
+            file_path = f"{base_path}/Filtered_GenAI_Metrics_cleaned_{q}.xlsx"
             if os.path.exists(file_path):
+                print(f"Processing {file_path}...")
                 xls = pd.ExcelFile(file_path)
                 metrics_df = pd.read_excel(xls, sheet_name=0)
                 metrics_df = self._find_and_standardize_participant_col(metrics_df, f"{q} Metrics")
@@ -105,99 +67,53 @@ with gr.Blocks(theme=gr.themes.Soft()) as demo:
                         fix_df = pd.read_excel(xls, sheet_name=1)
                         fix_df = self._find_and_standardize_participant_col(fix_df, f"{q} Fixations")
                         fix_df.dropna(subset=['Fixation point X', 'Fixation point Y', 'Gaze event duration (ms)'], inplace=True)
-                        for participant, group in fix_df.groupby('participant_id'):
-                            self.fixation_data[(participant, q)] = group.reset_index(drop=True)
+                        for participant_id, group in fix_df.groupby('participant_id'):
+                            self.fixation_data[(participant_id, q)] = group.reset_index(drop=True)
+                            if participant_id not in self.valid_playback_trials:
+                                self.valid_playback_trials[participant_id] = []
+                            self.valid_playback_trials[participant_id].append(q)
+                        print(f"  -> Successfully loaded {len(fix_df)} fixations for {q}.")
                     except Exception as e:
                         print(f"  -> WARNING: Could not load fixation sheet for {q}. Error: {e}")
 
         if not all_metrics_dfs: raise ValueError("No aggregated metrics files were found.")
         self.combined_data = pd.concat(all_metrics_dfs, ignore_index=True)
-        q_to_pair# ... (UI is the same)
-
-# The UI structure is identical to before, just add the new status component
-# This is a bit of a rewrite to use the ids for clarity.
-with gr.Blocks(theme=gr.themes.Soft()) as demo:
-    gr.Markdown("# Interactive Dashboard: AI vs. Real Gaze Analysis")
-    with gr.Tabs() as tabs:
-        with gr.TabItem("📊 RQ1: Viewing Time vs. Correctness", id=0):
-            with gr.Row():
-                with gr.Column(scale=1):
-                    rq1_metric_dropdown = gr.Dropdown(choices=analyzer.time_metrics = {f'Q{i+1}': f'Pair{i+1}' for i in range(6)}
+        q_to_pair = {f'Q{i+1}': f'Pair{i+1}' for i in range(6)}
         self.combined_data['Pair'] = self.combined_data['Question'].map(q_to_pair)
         self.combined_data = self.combined_data.merge(response_long, on=['participant_id', 'Pair'], how='left')
-        self.combined_data['Answer_Correctness, label="Select a Time-Based Metric", value=analyzer.time_metrics[0] if analyzer.time_metrics else None)
-                    rq1_summary_output = gr.Markdown(label="Statistical Summary")
-                with gr.Column(scale=2):
-                    rq1_plot_output = gr.Plot(label="Metric Comparison")
-        with gr.TabItem("🤖 RQ2: Predicting Correctness from Gaze", id=1):
-            with gr.Row():
-                with gr.Column(scale=1):
-                    gr'] = self.combined_data['Correct'].map({True: 'Correct', False: 'Incorrect'})
-        .Markdown("#### Tune Model Hyperparameters")
-                    rq2_test_size_slider = gr.Slider(minimum=0.1, maximum=0.5, step=0.05, value=0.3
-        self.numeric_cols = self.combined_data.select_dtypes(include=np.number).columns.tolist()
-        self.time_metrics = [c for c in self.numeric_cols if any, label="Test Set Size")
-                    rq2_estimators_slider = gr.Slider(minimum=10(k in c.lower() for k in ['time', 'duration', 'fixation'])]
+        self.combined_data['Answer_Correctness'] = self.combined_data['Correct'].map({True: 'Correct', False: 'Incorrect'})
         
-        , maximum=200, step=10, value=100, label="Number of Trees")# KEY FIX: Participant list is now derived ONLY from trials with valid fixation data.
-        self.participant_list
-                    rq2_status = gr.Markdown("Train a model to enable the Gaze Playback tab.")
- = sorted(list(set([key[0] for key in self.fixation_data.keys()])))                with gr.Column(scale=2):
-                    rq2_summary_output = gr.Markdown(label
-        print(f"--- Data Loading Successful. Found {len(self.participant_list)} participants with fixation data.="Model Performance Summary")
-                    rq2_table_output = gr.Dataframe(label="Classification Report", ---")
+        self.numeric_cols = self.combined_data.select_dtypes(include=np.number).columns.tolist()
+        self.time_metrics = [c for c in self.numeric_cols if any(k in c.lower() for k in ['time', 'duration', 'fixation'])]
+        self.valid_playback_participants = sorted(list(self.valid_playback_trials.keys()))
+        print(f"--- Data Loading Successful. Found {len(self.valid_playback_participants)} participants with fixation data. ---")
         return self
 
-    def run_prediction_model(self, test_size, n_estimators interactive=False)
-                    rq2_plot_output = gr.Plot(label="Feature Importance")
-        ):
-        leaky_features = ['Correct', 'participant_id']
-        self.feature_names = [with gr.TabItem("👁️ Gaze Playback & Real-Time Prediction", id=2):
-            col for col in self.combined_data.select_dtypes(include=np.number).columns if col not in leaky_with gr.Row():
-                with gr.Column(scale=1):
-                    gr.Markdown("### See the Prediction Efeatures]
+    def run_prediction_model(self, test_size, n_estimators):
+        leaky_features = ['participant_id', 'Correct', 'Total_Correct', 'Overall_Accuracy']
+        self.feature_names = [col for col in self.numeric_cols if col not in leaky_features]
         features = self.combined_data[self.feature_names].copy()
-        target = self.combinedvolve with Every Glance!")
-                    playback_participant = gr.Dropdown(choices=analyzer.participant_list, label_data['Answer_Correctness'].map({'Correct': 1, 'Incorrect': 0})
-        valid="Select Participant")
-                    playback_question = gr.Dropdown(choices=analyzer.questions, label="Select Question_indices = target.notna()
-        features, target = features[valid_indices], target[valid_")
-                    gr.Markdown("Use the slider to play back fixations one by one.")
-                    playback_sliderindices]
+        target = self.combined_data['Answer_Correctness'].map({'Correct': 1, 'Incorrect': 0})
+        valid_indices = target.notna()
+        features, target = features[valid_indices], target[valid_indices]
         features = features.fillna(features.median()).fillna(0)
-        if len(target = gr.Slider(minimum=0, maximum=1, step=1, value=0, label="Fix.unique()) < 2: return "Not enough data to train.", None, None
-        X_train, X_testation Number", interactive=False)
-                    playback_summary = gr.Markdown(label="Trial Info")
-                with gr.Column(scale=2):
-                    playback_plot = gr.Plot(label="Gaze Play, y_train, y_test = train_test_split(features, target, test_size=test_size, random_state=42, stratify=target)
-        self.scaler = StandardScaler().fitback & Live Prediction")
-
-    outputs_rq2 = [rq2_summary_output, rq2_table_output, rq2_plot_output, rq2_status]
-    outputs_playback = [playback_summary, playback(X_train)
+        if len(target.unique()) < 2: return "Not enough data to train.", None, None, gr.Markdown("Model not trained yet.")
+        X_train, X_test, y_train, y_test = train_test_split(features, target, test_size=test_size, random_state=42, stratify=target)
+        self.scaler = StandardScaler().fit(X_train)
         self.model = RandomForestClassifier(n_estimators=int(n_estimators), random_state=42, class_weight='balanced').fit(self.scaler.transform(X_train), y_train)
-_plot, playback_slider]
-    rq1_metric_dropdown.change(fn=analyzer.analyze_rq1_metric, inputs=rq1_metric_dropdown, outputs=[rq1_plot_output, rq        report = classification_report(y_test, self.model.predict(self.scaler.transform(X_test)), target_names=['Incorrect', 'Correct'], output_dict=True)
-        auc_score =1_summary_output])
-    rq2_test_size_slider.release(fn=analyzer.run_prediction_model, inputs=[rq2_test_size_slider, rq2_estimators_slider], outputs=outputs roc_auc_score(y_test, self.model.predict_proba(self.scaler.transform(X_test))[:, 1])
-        summary_md = f"### Model Performance\n- **AUC_rq2)
-    rq2_estimators_slider.release(fn=analyzer.run_prediction_model, inputs=[rq2_test_size_slider, rq2_estimators_slider], outputs=outputs_rq Score:** **{auc_score:.4f}**\n- **Overall Accuracy:** {report['accuracy']:.3f}"
+        report = classification_report(y_test, self.model.predict(self.scaler.transform(X_test)), target_names=['Incorrect', 'Correct'], output_dict=True)
+        auc_score = roc_auc_score(y_test, self.model.predict_proba(self.scaler.transform(X_test))[:, 1])
+        summary_md = f"### Model Performance\n- **AUC Score:** **{auc_score:.4f}**\n- **Overall Accuracy:** {report['accuracy']:.3f}"
         report_df = pd.DataFrame(report).transpose().round(3)
-        feature_importance = pd.DataFrame({'Feature': self.feature_names, 'Importance': self.model.feature2)
-    playback_inputs = [playback_participant, playback_question, playback_slider]
-    playback_participant.change(lambda: 0, None, playback_slider).then(fn=analyzer.generate_gaze_playback, inputs=playback_inputs, outputs=outputs_playback)
-    playback_question.change(lambda_importances_}).sort_values('Importance', ascending=False).head(15)
-        fig, ax = plt.subplots(figsize=(10, 8)); sns.barplot(data=feature_importance, x='Importance', y='Feature', ax=ax, palette='viridis'); ax.set_title(f': 0, None, playback_slider).then(fn=analyzer.generate_gaze_playback, inputs=playback_inputs, outputs=outputs_playback)
-    playback_slider.release(fn=analyzer.generate_gaze_playback, inputs=playback_inputs, outputs=outputs_playback)
-
-    demo.load(Top 15 Predictive Features', fontsize=14); plt.tight_layout()
-        return summary_md, report_df, fig
-
-    def _recalculate_features_from_fixations(self, fixations_df):fn=analyzer.analyze_rq1_metric, inputs=rq1_metric_dropdown, outputs=[rq1_plot_output, rq1_summary_output])
-    demo.load(fn=analyzer.run_prediction
+        feature_importance = pd.DataFrame({'Feature': self.feature_names, 'Importance': self.model.feature_importances_}).sort_values('Importance', ascending=False).head(15)
+        fig, ax = plt.subplots(figsize=(10, 8)); sns.barplot(data=feature_importance, x='Importance', y='Feature', ax=ax, palette='viridis'); ax.set_title(f'Top 15 Predictive Features (n_estimators={int(n_estimators)})', fontsize=14); plt.tight_layout()
+        return summary_md, report_df, fig, gr.Markdown("✅ **Model is ready!** You can now use the Gaze Playback tab.")
+
+    def _recalculate_features_from_fixations(self, fixations_df):
         feature_vector = pd.Series(0.0, index=self.feature_names)
         if fixations_df.empty: return feature_vector.fillna(0).values.reshape(1, -1)
         if 'AOI name' in fixations_df.columns:
-            for aoi_name,_model, inputs=[rq2_test_size_slider, rq2_estimators_slider], outputs=outputs group in fixations_df.groupby('AOI name'):
+            for aoi_name, group in fixations_df.groupby('AOI name'):
                 col_name = f'Total fixation duration on {aoi_name}'
                 if col_name in feature_vector.index:
                     feature_vector[col_name] = group['Gaze event duration (ms)'].sum()
@@ -205,9 +121,10 @@ _plot, playback_slider]
         return feature_vector.fillna(0).values.reshape(1, -1)
 
     def generate_gaze_playback(self, participant, question, fixation_num):
+        if self.model is None: return "Please train a model in Tab 2 first.", None, gr.Slider(interactive=False)
         trial_key = (str(participant), question)
         if not participant or not question or trial_key not in self.fixation_data:
-            return "**No fixation data found for this trial.**", None, gr.Slider(interactive=False, value=0)
+            return "Please select a valid trial.", None, gr.Slider(interactive=False, value=0)
         
         all_fixations = self.fixation_data[trial_key]
         fixation_num = int(fixation_num)
@@ -220,7 +137,111 @@ _plot, playback_slider]
         prob_correct = prediction_prob[1]
         
         fig, (ax1, ax2) = plt.subplots(2, 1, figsize=(10, 8), gridspec_kw={'height_ratios': [4, 1]})
-        fig.suptitle_rq2)
+        fig.suptitle(f"Gaze Playback for {participant} - {question}", fontsize=16, weight='bold')
+        ax1.set_title(f"Displaying Fixations 1 through {fixation_num}/{slider_max}")
+        ax1.set_xlim(0, 1920); ax1.set_ylim(1080, 0)
+        ax1.set_aspect('equal'); ax1.tick_params(left=False, right=False, bottom=False, top=False, labelleft=False, labelbottom=False)
+        ax1.add_patch(patches.Rectangle((0, 0), 1920/2, 1080, facecolor='#e0e0e0'))
+        ax1.add_patch(patches.Rectangle((1920/2, 0), 1920/2, 1080, facecolor='#f0f0f0'))
+        ax1.text(1920*0.25, 50, "Image A", ha='center', fontsize=14, alpha=0.7)
+        ax1.text(1920*0.75, 50, "Image B", ha='center', fontsize=14, alpha=0.7)
+        if not current_fixations.empty:
+            points = current_fixations[['Fixation point X', 'Fixation point Y']]
+            ax1.plot(points['Fixation point X'], points['Fixation point Y'], marker='o', color='grey', alpha=0.5, linestyle='-')
+            ax1.scatter(points.iloc[-1]['Fixation point X'], points.iloc[-1]['Fixation point Y'], s=200, c='red', zorder=10, edgecolors='black', lw=2)
+        
+        ax2.set_xlim(0, 1); ax2.set_yticks([])
+        ax2.set_title("Live Prediction Confidence (Answer is 'Correct')")
+        bar_color = 'green' if prob_correct > 0.5 else 'red'
+        ax2.barh([0], [prob_correct], color=bar_color, height=0.5, edgecolor='black')
+        ax2.axvline(0.5, color='black', linestyle='--', linewidth=1)
+        ax2.text(prob_correct, 0, f" {prob_correct:.1%} ", va='center', ha='left' if prob_correct < 0.9 else 'right', color='white', weight='bold', fontsize=12)
+        plt.tight_layout(rect=[0, 0, 1, 0.95])
+        
+        trial_info = self.combined_data[(self.combined_data['participant_id'] == str(participant)) & (self.combined_data['Question'] == question)].iloc[0]
+        summary_text = f"**Actual Answer:** `{trial_info['Answer_Correctness']}`"
+        
+        return summary_text, fig, gr.Slider(maximum=slider_max, value=fixation_num, interactive=True)
+    
+    def analyze_rq1_metric(self, metric):
+        if not metric or metric not in self.combined_data.columns: return None, "Metric not found."
+        correct = self.combined_data.loc[self.combined_data['Answer_Correctness'] == 'Correct', metric].dropna()
+        incorrect = self.combined_data.loc[self.combined_data['Answer_Correctness'] == 'Incorrect', metric].dropna()
+        if len(correct) < 2 or len(incorrect) < 2: return None, "Not enough data for both groups to compare."
+        t_stat, p_val = stats.ttest_ind(incorrect, correct, equal_var=False, nan_policy='omit')
+        fig, ax = plt.subplots(figsize=(8, 6)); sns.boxplot(data=self.combined_data, x='Answer_Correctness', y=metric, ax=ax, palette=['#66b3ff','#ff9999']); ax.set_title(f'Comparison of "{metric}" by Answer Correctness', fontsize=14); ax.set_xlabel("Answer Correctness"); ax.set_ylabel(metric); plt.tight_layout()
+        summary = f"""### Analysis for: **{metric}**\n- **Mean (Correct Answers):** {correct.mean():.4f}\n- **Mean (Incorrect Answers):** {incorrect.mean():.4f}\n- **T-test p-value:** {p_val:.4f}\n\n**Conclusion:**\n- {'There is a **statistically significant** difference (p < 0.05).' if p_val < 0.05 else 'There is **no statistically significant** difference (p >= 0.05).'}"""
+        return fig, summary
+    
+    def update_question_dropdown(self, participant):
+        """Dynamically updates the question dropdown based on the selected participant."""
+        valid_questions = self.valid_playback_trials.get(participant, [])
+        return gr.Dropdown(choices=sorted(valid_questions), interactive=True, value=None)
+
+# --- DATA SETUP & GRADIO APP ---
+def setup_and_load_data():
+    repo_url = "https://github.com/RextonRZ/GenAIEyeTrackingCleanedDataset"
+    repo_dir = "GenAIEyeTrackingCleanedDataset"
+    if not os.path.exists(repo_dir): git.Repo.clone_from(repo_url, repo_dir)
+    else: print("Data repository already exists.")
+    base_path = repo_dir 
+    response_file_path = os.path.join(repo_dir, "GenAI Response.xlsx")
+    analyzer = EnhancedAIvsRealGazeAnalyzer().load_and_process_data(base_path, response_file_path)
+    return analyzer
+
+analyzer = setup_and_load_data()
+
+with gr.Blocks(theme=gr.themes.Soft()) as demo:
+    gr.Markdown("# Interactive Dashboard: AI vs. Real Gaze Analysis")
+    with gr.Tabs():
+        with gr.TabItem("📊 RQ1: Viewing Time vs. Correctness"):
+            with gr.Row():
+                with gr.Column(scale=1):
+                    rq1_metric_dropdown=gr.Dropdown(choices=analyzer.time_metrics, label="Select a Time-Based Metric", value=analyzer.time_metrics[0] if analyzer.time_metrics else None)
+                    rq1_summary_output=gr.Markdown(label="Statistical Summary")
+                with gr.Column(scale=2):
+                    rq1_plot_output=gr.Plot(label="Metric Comparison")
+        
+        with gr.TabItem("🤖 RQ2: Predicting Correctness from Gaze"):
+            with gr.Row():
+                with gr.Column(scale=1):
+                    gr.Markdown("#### Tune Model Hyperparameters")
+                    rq2_test_size_slider=gr.Slider(minimum=0.1, maximum=0.5, step=0.05, value=0.3, label="Test Set Size")
+                    rq2_estimators_slider=gr.Slider(minimum=10, maximum=200, step=10, value=100, label="Number of Trees")
+                    rq2_status = gr.Markdown("Train a model to enable the Gaze Playback tab.")
+                with gr.Column(scale=2):
+                    rq2_summary_output=gr.Markdown(label="Model Performance Summary")
+                    rq2_table_output=gr.Dataframe(label="Classification Report", interactive=False)
+                    rq2_plot_output=gr.Plot(label="Feature Importance")
+
+        with gr.TabItem("👁️ Gaze Playback & Real-Time Prediction"):
+            gr.Markdown("### See the Prediction Evolve with Every Glance!")
+            with gr.Row():
+                with gr.Column(scale=1):
+                    playback_participant=gr.Dropdown(choices=analyzer.valid_playback_participants, label="1. Select a Participant")
+                    playback_question=gr.Dropdown(choices=[], label="2. Select a Question", interactive=False)
+                    gr.Markdown("3. Use the slider to play back fixations one by one.")
+                    playback_slider=gr.Slider(minimum=0, maximum=1, step=1, value=0, label="Fixation Number", interactive=False)
+                    playback_summary=gr.Markdown(label="Trial Info")
+                with gr.Column(scale=2):
+                    playback_plot=gr.Plot(label="Gaze Playback & Live Prediction")
+
+    # --- WIRING FOR ALL TABS ---
+    outputs_rq2 = [rq2_summary_output, rq2_table_output, rq2_plot_output, rq2_status]
+    outputs_playback = [playback_summary, playback_plot, playback_slider]
+    
+    rq1_metric_dropdown.change(fn=analyzer.analyze_rq1_metric, inputs=rq1_metric_dropdown, outputs=[rq1_plot_output, rq1_summary_output])
+    
+    rq2_test_size_slider.release(fn=analyzer.run_prediction_model, inputs=[rq2_test_size_slider, rq2_estimators_slider], outputs=outputs_rq2)
+    rq2_estimators_slider.release(fn=analyzer.run_prediction_model, inputs=[rq2_test_size_slider, rq2_estimators_slider], outputs=outputs_rq2)
+    
+    # Chained dropdown logic for Tab 3
+    playback_participant.change(fn=analyzer.update_question_dropdown, inputs=playback_participant, outputs=playback_question)
+    playback_question.change(lambda: 0, None, playback_slider).then(fn=analyzer.generate_gaze_playback, inputs=[playback_participant, playback_question, playback_slider], outputs=outputs_playback)
+    playback_slider.release(fn=analyzer.generate_gaze_playback, inputs=[playback_participant, playback_question, playback_slider], outputs=outputs_playback)
+
+    demo.load(fn=analyzer.analyze_rq1_metric, inputs=rq1_metric_dropdown, outputs=[rq1_plot_output, rq1_summary_output])
+    demo.load(fn=analyzer.run_prediction_model, inputs=[rq2_test_size_slider, rq2_estimators_slider], outputs=outputs_rq2)
 
 if __name__ == "__main__":
     demo.launch()