diff --git a/CEMCECEM.m b/CEMCECEM.m
index fbabb53..d95d689 100644
--- a/CEMCECEM.m
+++ b/CEMCECEM.m
@@ -1,22 +1,22 @@
-ncfile = "o3_surface_20180701000000.nc";
+ncfile = "o3_surface_20180701000000.nc";%ncfile chosen
 ncinfo(ncfile);
 ncdisp(ncfile);
 
 lati = ncread(ncfile, 'lat');
 longe = ncread(ncfile, 'lon');
 
-fileDirectory = dir('24HR_CBE_*.csv');
+fileDirectory = dir('24HR_CBE_*.csv');%shows the directory
 
-for k =1 : length(fileDirectory)
-    file = fileDirectory(k).name;
+for k =1 : length(fileDirectory) %loop has started
+    file = fileDirectory(k).name;  
     matrix = readmatrix(file);
     matrix(400,:) = [0];
     matrix(:,700) = [0];
-    showmap = pcolor(longe,lati,matrix);
+    showmap = pcolor(longe,lati,matrix); % creates the colour
     showmap.EdgeAlpha = 0;
     hold on;
-    p = meshgrid(longe,lati)
-    s = plot(p,'k');
+    p = meshgrid(longe,lati) %this makes longe and lati equal to allow the program to run smoothly
+    s = plot(p,'k'); % plots the values
     showmap;
     colorbar
     pause