Question

MATLAB 2017b

i know i didnt post the data file "exam_data.txt" hypothtically how would i do this problem with access to the file

Download the file “exam_data.txt” from Black Board (or your email) to your directory.

Read the file into 13 by 7 array

Find the largest and smallest number in the array

Write these two results into a file and name the file:

lastname_firstname_exam2_problem1_output_file.txt

Make sure that your problem checks the reading and writing operations.

Answer 1

Code: -

fileID = fopen('exam_data.txt','r'); % open file in read mode
formatSpec = '%f'; % format of the data to read
sizeA = [13 7]; % shape of output array
A = fscanf(fileID,formatSpec,sizeA); %Read the file data, filling output array, A, in column order
fclose(fileID);
max_value = max(max(A));
min_value = min(min(A));
kk=[max_value min_value];
file_name ="lastname_firstname_exam2_problem1_output_file.txt";
fileID1 = fopen(file_name,'w'); % open file in write mode
fprintf(fileID1,'%f %f',kk); % write variable in file
fclose(fileID1);

Output:-

I can not show output because you have not post the exam_data.txt