How do i Extract certain values from a list using a for loop and if statements

I have a list of student numbers and a list of absences...when student has 1 or 2 absences, trying to extract that student number and show their number of absences. please help me

StudentNumber = xlsread('ClassList.xlsx','Feb_21_2010','A4:A34');
Absences = xlsread('ClassList.xlsx','Feb_21_2010','B4:B34');
StudNum=size(StudentNumber);
fprintf('Class List as of February 21, 2010\n\n')

fprintf('Student# \t  Absences\n')
for n = 1:1:StudNum
fprintf('\n%5i \t\t\t  %i\n',StudentNumber(n),Absences(n))
end
disp('')
fprintf('Students with 1 or 2 Absences who will recieve a Warning Letter\n\n')
Abs=[Absences];
nAbs=length(Abs);
NumAbs(1:StudNum,1:nAbs)= false;
fprintf('Student# \t Absences\n')
for n = 1:1:nAbs

      fprintf('\n%5i \t\t\t %i\n',StudentNumber(n),Absences(n))

[Joseph]

The first part works, showing all students and corresponding number of absences for each student...how can i extract just the students with 1 or 2 absences?

Answer 1

[nl2605]

for n = 1 : nAbs

if Absences(n) == 1 || Absences(n) == 2
   fprintf('\n%5i \t\t\t %i\n',StudentNumber(n),Absences(n))
end

end

[Joseph]

Thanks perfect