Rename year directories to allow natural ordering

year2/semester2/CT248/Assignments/LabTest-1/fill_estimates.m

@@ -0,0 +1,25 @@
+function [grades] = fill_estimates(grades)
+    for i = 1:size(grades, 2) 
+        % making copy
+        copy = grades(:, i);
+        nonzero = 0; % count of nonzero elements to calculate avg
+        sum = 0;    % sum of nonzero elements
+
+        % looping through copy and counting number of nonzero elements
+        for j = 1:size(copy,1) 
+            if copy(j) ~= 0
+                nonzero = nonzero + 1;
+                sum = sum + copy(j);
+            end 
+        end
+        
+        avg = round(sum / nonzero);
+
+        % looping through original and replacing any nonzero with average 
+        for j = 1:size(copy,1)
+            if grades(j,i) == 0
+                grades(j,i) = avg; 
+            end
+        end
+    end
+end