Update app.py

app.py

@@ -368,6 +368,9 @@ class DicomAnalyzer:
         """
         Creates an Excel file with results in a formatted table,
         adding SNR/CNR formulas and averaging blocks for StdDev and CNR.
+        
+        NOTE: CNR Averages uses AVERAGE() and we skip any cell references where
+              Mean1, Mean2, StdDev2 are all zero. So we avoid AVERAGEIF complexities.
         """
         try:
             if not self.results:
@@ -491,18 +494,16 @@ class DicomAnalyzer:
             cnr_header.alignment = center_alignment
             current_row += 1
             
-            # حساب متوسط CNR للصف الثاني في كل pair:
+            # حساب متوسط CNR للصف الثاني في كل pair باستخدام AVERAGE فقط
             for i, size in enumerate(phantom_sizes):
-                # الصف الثاني هو row_pairs[i][1]
                 row_number = row_pairs[i][1]
                 cnr_cells = []
-                
-                # نجمع كل الخلايا التي فيها الصيغة CNR (وهي العمود بعد آخر عمود في المجموعة)
+
                 for cols in column_groups:
                     formula_col = get_column_letter(column_index_from_string(cols[-1]) + 1)
                     cnr_cell_ref = f"{formula_col}{row_number}"
 
-                    # تحقق من قيم (Mean1,Mean2,Std2) للفلترة
+                    # نقرأ Mean1,Mean2,Std2 للتحقق
                     mean_col = cols[1]
                     std_col  = cols[2]
                     
@@ -517,7 +518,7 @@ class DicomAnalyzer:
                     except:
                         mean1_val, mean2_val, std2_val = 0, 0, 0
 
-                    # لو كلها صفر => لا نضيف هذه الخلية للمتوسط
+                    # لو كلها صفر => لا نضيف الخلية
                     if not (mean1_val == 0 and mean2_val == 0 and std2_val == 0):
                         cnr_cells.append(cnr_cell_ref)
                 
@@ -525,12 +526,11 @@ class DicomAnalyzer:
                 size_cell.alignment = center_alignment
 
                 if cnr_cells:
-                    # نبني صيغة AverageIF تتجاهل الخلايا = 0
-                    cnr_range = f"({','.join(cnr_cells)})"
-                    cnr_formula = f'=IFERROR(AVERAGEIF({cnr_range}, "<>0"), "")'
+                    # نبني صيغة Excel: =IFERROR(AVERAGE(G3,M3,...),"")
+                    average_formula = f'=IFERROR(AVERAGE({",".join(cnr_cells)}), "")'
                     
                     avg_cell = ws.cell(row=current_row, column=2)
-                    avg_cell.value = cnr_formula
+                    avg_cell.value = average_formula
                     avg_cell.number_format = '0.000'
                     avg_cell.alignment = center_alignment
                 
@@ -599,6 +599,21 @@ class DicomAnalyzer:
         })
         return image, self.format_results()
 
+    def add_two_zero_rows(self, image):
+        """
+        Adds two consecutive rows of zeros.
+        """
+        for _ in range(2):
+            self.results.append({
+                'Area (mm²)': '0.000',
+                'Mean': '0.000',
+                'StdDev': '0.000',
+                'Min': '0.000',
+                'Max': '0.000',
+                'Point': '(0, 0)'
+            })
+        return image, self.format_results()
+
     def undo_last(self, image):
         if self.results:
             self.results.pop()
@@ -641,6 +656,7 @@ def create_interface():
         with gr.Row():
             blank_btn = gr.Button("Add Blank Row")
             zero_btn = gr.Button("Add Zero Row")
+            zero2_btn = gr.Button("Add Two Zero Rows")  # <-- New button
             undo_btn = gr.Button("Undo Last")
             save_btn = gr.Button("Save Results")
             save_formatted_btn = gr.Button("Save Formatted Results")
@@ -730,7 +746,14 @@ def create_interface():
             inputs=image_display,
             outputs=[image_display, results_display]
         )
-        
+
+        # زر إضافة صفين صفر
+        zero2_btn.click(
+            fn=analyzer.add_two_zero_rows,
+            inputs=image_display,
+            outputs=[image_display, results_display]
+        )
+
         undo_btn.click(
             fn=analyzer.undo_last,
             inputs=image_display,