MATLAB Answers

0

Creating a MatLab code to convert numerical grades into letter grades.

Asked by Robert Windham on 21 Sep 2019
Latest activity Commented on by Robert Windham on 22 Sep 2019
Hey all!
I've currently working on creating a code that will allow me to convert numbers into a letter grade that can be put into a single column vector (1X25) and I can't figure out how to make it work. I thought I may have been onto something with this:
lg=mn; %lg is just what I'm calling letter grade and mn in the mean grade of the students assignments (also a 1X25).
if 90<=mn<=100
disp('A')
elseif 80<=mn<=89
disp('B')
elseif 60<=mn<=79
disp('C')
elseif 40<=mn<=59
disp('D')
elseif mn<40
disp('F')
end
I don't recieve any errors when I run it but it also doesn't provide me with any letter grades.
Any help would be greatly appreciated!
V/R,
Bobby

  2 Comments

x(x>=60&x<70)='D';
x(x>=90)='A';
x(x>=80)='B';
x(x>=70)='C';
x(x<60)='F';
x=char(x);
This provides a char array
I tried doing this with a character array but because I want to include the 25X1 into another huge matrix, it messes up the rest of the matrix (looks like wingdings when I run the code).
Thank you, though!

Sign in to comment.

1 Answer

Answer by madhan ravi
on 21 Sep 2019
Edited by madhan ravi
on 21 Sep 2019

You should loop through mn and save the results as a cell array in a variable which is preallocated before loop using indexing. Or better just use logical indexing and store the results as a cell array.

  0 Comments

Sign in to comment.