Update app.py

app.py

@@ -361,6 +361,39 @@ def create_probability_chart(predictions, consensus_class):
         
         # Gráfico 2: Confianza por modelo
         model_names = [pred['model'].split(' ')[1] if len(pred['model'].split(' ')) > 1 else pred['model'] for pred in predictions]
+        confidences = [pred['confidence'] for pred in predictions]
+        
+        colors_conf = ['#ff6b35' if pred['is_malignant'] else '#44ff44' for pred in predictions]
+        bars2 = ax2.bar(range(len(predictions)), confidences, color=colors_conf, alpha=0.8)
+        
+        ax2.set_xlabel('Modelos')
+        ax2.set_ylabel('Confianza')
+        ax2.set_title('🎯 Confianza por Modelo')
+        ax2.set_xticks(range(len(predictions)))
+        ax2.set_xticklabels(model_names, rotation=45)
+        ax2.grid(True, alpha=0.3)
+        ax2.set_ylim(0, 1)
+        
+        # Añadir valores en las barras
+        for i, bar in enumerate(bars2):
+            height = bar.get_height()
+            ax2.text(bar.get_x() + bar.get_width()/2., height + 0.01,
+                    f'{height:.1%}', ha='center', va='bottom', fontsize=9)
+        
+        plt.tight_layout()
+        
+        # Convertir a base64
+        buf = io.BytesIO()
+        plt.savefig(buf, format='png', dpi=300, bbox_inches='tight')
+        buf.seek(0)
+        chart_b64 = base64.b64encode(buf.getvalue()).decode()
+        plt.close()
+        
+        return f'<img src="data:image/png;base64,{chart_b64}" style="width:100%; max-width:800px;">'
+        
+    except Exception as e:
+        print(f"Error creando gráfico: {e}")
+        return "<p>❌ Error generando gráfico de probabilidades</p>"
     
     try:
         # Convertir a RGB si es necesario