update stats for users having highest vs items having lowest statistics

codes/k_user_stats.m

@@ -13,27 +13,40 @@
     load users.mat;
 end
 
-num_user_ratings = users(:,1);
-[~, p] = sort(num_user_ratings);
-
-n = size(p,1);
-most_active_idx = p(n-k+1:n);
-least_active_idx = p(1:k);
-rand_user_idx = randi(nUsers,k,1);
-
-most_active_users = [most_active_idx, users(most_active_idx,:)];
-least_active_users = [least_active_idx, users(least_active_idx,:)];
-random_users = [rand_user_idx, users(rand_user_idx,:)];
-
-most_active_stats = dataset({most_active_users, 'user_id', 'number_ratings', 'mean', 'user_bias', 'std', 'min', 'max', 'median', 'mode'});
-fprintf('%d users having highest number of ratings : \n', k);
-fprintf('These users have susceptive biases and influence predicted ratings???? : \n');
-disp(most_active_stats);
-
-least_active_stats = dataset({least_active_users, 'user_id', 'num_ratings', 'mean', 'user_bias', 'std', 'min', 'max', 'median', 'mode'});
-fprintf('%d users having lowest number of ratings : \n', k);
-disp(least_active_stats);
-
-rand_user_stats = dataset({random_users, 'user_id', 'num_ratings', 'mean', 'user_bias', 'std', 'min', 'max', 'median', 'mode'});
-fprintf('%d random users : \n', k);
-disp(rand_user_stats);
+while (true) 
+    disp('1) for stats about users havinng highest no of ratings');
+    disp('2) for stats about users havinng highest mean rating');    
+    disp('3) for stats about users havinng highest rating bias');
+    disp('4) for stats about users havinng highest rating variance ');
+    disp('-1) for exit');
+
+    option_id = input('Enter option id: '); 
+    if option_id == -1
+        break;
+    end
+
+    my_user_ratings = abs(users(:,option_id));
+    [~, p] = sort(my_user_ratings);
+
+    n = size(p,1);
+    most_active_idx = p(n-k+1:n);
+    least_active_idx = p(1:k);
+    rand_user_idx = randi(nUsers,k,1);
+
+    most_active_users = [most_active_idx, users(most_active_idx,:)];
+    least_active_users = [least_active_idx, users(least_active_idx,:)];
+    random_users = [rand_user_idx, users(rand_user_idx,:)];
+
+    most_active_stats = dataset({most_active_users, 'user_id', 'number_ratings', 'mean', 'user_bias', 'std', 'min', 'max', 'median', 'mode'});
+    fprintf('%d users having highest: \n', k);
+    fprintf('These users have susceptive biases and influence predicted ratings???? : \n');
+    disp(most_active_stats);
+
+    least_active_stats = dataset({least_active_users, 'user_id', 'num_ratings', 'mean', 'user_bias', 'std', 'min', 'max', 'median', 'mode'});
+    fprintf('%d users having lowest: \n', k);
+    disp(least_active_stats);
+
+    rand_user_stats = dataset({random_users, 'user_id', 'num_ratings', 'mean', 'user_bias', 'std', 'min', 'max', 'median', 'mode'});
+    fprintf('%d random users : \n', k);
+    disp(rand_user_stats);
+end