Question

Task 5 Download the ENG1060studentmarks.txt file from the Moodle. The file contains the following information: 1. 2, 3, 4, Column 1: Student ID Column 2-11: Lab marks (/10) worth 2% each (20% total of final grade) Column 12: Assignment mark (/10) worth 10% of the final grade Column 13: Exam mark (/100) worth 70% of the final grade a) Write a function that accepts a student's laboratory, assignment and exam marks as inputs to determine the final mark to the nearest integer and the letter grade of the student. Your function header would be similar to: function [final_mark, gradel markscalc(lab, assignment, exam) Note: The letter grades should be stored as a string and are described as follows: final_mark 2 80 70 final mark < 80 → D 60 s final mark <70 C 50 final mark < 60 → P final_mark< 50 b) Write an m-file that achieves the following: 1. Prompts the user to input a student's ID number and extracts the individual assessment marks from the ENG1060studentmarks.txt file Use the function written in part a) to calculate the student's final mark and letter grade 2. Hint: You may want to use logical statements or the find() command to determine the row of the ID number which was input by the user
use Matlab to solve this problem, thank you

Answer 1

Function:

function lfinal mark,grade] markscalc(lab, assignment, exam) final-mark round (0.2-lab + 0.1*a331gnment + 0.7*exam); it tinal mark >- e elseif final mark < 80 “ final mark >= 70 grade-'HD' grade D grade = 'C'; elseif final mark <70 && final mark > 60 elseif final mark < 60 “ final mark >= 50 else grade = 'F'; end end

Script:

importdata (FILENAME, DELIM, NHEADERLINES) loads data from ASCII file FILENAME, reading numeric data starting from line NHEADERLINES+1. Filename % data is tab delimited and it contain, one headerline ("Marks.txt") Hence DELIM- "\t" and NHEADERLĪNES 1 all_marks_data -importdata(,"\t",1) % all-marks-data 13 a struct containing text fields and numeric data % hence extracting only numeric data in marks which is stored in data field marks - all_marks data.data; extracting data skipping first line ID = input ("\nEnter Student ID row = find (marks ID) ; if isempty (row) : "); error("ID not found") % Some error proofing end student-marks = mark3 (row, : ) ; lab = 3um (studentmarks (2:11)); a331gnment 3tudent-marks (12); examstudent_marks (13): [final-mark, grade] = mark3 calc (1ab, a331gnment , exam); 号Using developed function fprintf("\n Final Marks : %d , Grade %3\n", final-mark, grade); % Printing result Getting data for entered Student ID Extracting lab marks (column 2:11) Extracting assignment marks (column 12) exam marks (column 13) -

Command Window Enter Student ID 21245689 Final Marks : 73 , Grade -D

Command Window Enter Student ID : 213354568 Error using Marks txt read (line 15) ID not found

Command Window Enter Student ID 21245695 Final Marks 45, GradeF

TEXT:

Function :

function [final_mark,grade] = markscalc(lab,assignment,exam)

    final_mark = round(0.2*lab + 0.1*assignment + 0.7*exam);

    if final_mark >= 80
        grade = 'HD';
    elseif final_mark < 80 && final_mark >= 70
        grade = 'D';
    elseif final_mark < 70 && final_mark >=60
        grade = 'C';
    elseif final_mark < 60 && final_mark >= 50
        grade = 'P';
    else
        grade = 'F';
    end
end

Script :

% importdata(FILENAME, DELIM, NHEADERLINES) loads data from ASCII file
%    FILENAME, reading numeric data starting from line NHEADERLINES+1.

f = ("Marks.txt");                          % Filename
% data is tab delimited and it Contains one headerline
% Hence DELIM = "\t" and NHEADERLINES = 1
all_marks_data = importdata(f,"\t",1);      % extracting data skipping first line
% all_marks_data is a struct containing text fields and numeric data
% hence extracting only numeric data in marks which is stored in data field
marks = all_marks_data.data;

ID = input("\nEnter Student ID : ");
row = find(marks == ID);
if isempty(row)
    error("ID not found")                  % Some error proofing
end
student_marks = marks(row,:);              % Getting data for entered Student ID
lab = sum(student_marks(2:11));            % Extracting lab marks(column 2:11)
assignment = student_marks(12);            % Extracting assignment marks(column 12)
exam = student_marks(13);                  % exam marks (column 13)
[final_mark,grade] = markscalc(lab,assignment,exam);    % Using developed function
fprintf("\n Final Marks : %d , Grade = %s\n",final_mark,grade);   % Printing results