Update app.py

app.py

@@ -64,6 +64,14 @@ class CalibrationModel:
         self.fit_calibration = self.fit_calibration_linear
 
     def fit_calibration_linear(self, concentration, absorbance, bounds):
+        # Eliminar valores NaN e inf
+        mask = ~np.isnan(concentration) & ~np.isnan(absorbance) & np.isfinite(concentration) & np.isfinite(absorbance)
+        concentration = concentration[mask]
+        absorbance = absorbance[mask]
+
+        if len(concentration) == 0 or len(absorbance) == 0:
+            raise ValueError("No valid data points for fitting.")
+
         popt, _ = curve_fit(self.linear, concentration, absorbance, bounds=bounds, maxfev=10000)
         self.params['calibration'] = {'m': popt[0], 'b': popt[1]}
         y_pred = self.linear(concentration, *popt)