Question

MATLAB CODE P#5. In a group of N students (male and female), write pseudocede to count the number of male that pass or fail the course. The passing score is 60 or greater. Hint: a variable, say G (as in gender) should store one of the two possibilities 'M' (as in 'male') or 'F' (as in 'female') inputted by an external file. The data will be stored in an external file provided by the instructor

Answer 1

Considering external file provided by instructor is named as StudentInfo.txt. A sample of this file values are shown below:

M 62
F 49
M 40
M 60
M 69
F 97
F 69
M 34
M 56
M 80

Matlab code is given below:

disp('* Reading Student info *');
%% Reading student information
file=['StudentInfo.txt']; % StudentInfo.txt is the external file provided by the instructor
fid = fopen(file, 'r');
Count=0; % Initialize Count variable which stores number of males passed in exam

input = textscan(fid, '%s %d');
nWords = length(input{1}); %total Number of Students(N)
PassMarks = 60;

for j=1:nWords
    Gender = char(input{1}(j));
    ActualMarks = input{2}(j);
    if (Gender == 'M' && ActualMarks>=PassMarks)
        Count=Count+1;
    end
end

count %Print Number of Males passed.

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Note: Copy the values of StudentInfo given above and save them as StudentInfo.txt. Copy pasteThe Matlab code it will work fine. ScreenShot of matlab promt is given below.

Feel free to ask if any doubt.