Sorry here is an easier version to read
y=load('Class19_survey.txt');
ag=0;
ne=0;
dis=0;
for k=1:length(y)
if y(k)>=4
ag=ag+1;
fprintf('\nThe number of people who agree is\n',ag)
elseif y(k)==3
ne=ne+1
fprintf('\nThe number of neutral responses is\n',ne)
else y(k)<=2
dis=dis+1
fprintf('\nThe number of disagree responses is\n', dis)
end
end