need help with an error

My code works properly and does exactly what I need it to which is a GPA calculation

however when I test it on coursework, it tells me that I am failing the error test to make sure that my two inputs are integers (credits between 1 and 4)(grades between 0 and 4)

I have this test in there, and it works in matlab when I check for it, but not when I run it through the test on cody coursework.

Is there something I am missing from my code or is there something wrong with the testing I am running it through?

function GPA = GPAcalc(credits,grades) %GPAcalc calculates the GPA from an array of credits and grades % %INPUT credits: an array of credit hours of classes taken % grades: an array containing the grades of each class % the arrays of both inputs must be of the same size %OUTPUT GPA: the GPA based on the grade for each class taken

% ERROR CHECKS dimC=size(credits); dimG=size(grades); L1=length(credits); L2=length(grades);

if dimC(1)~=1 dimG(1)~=1; error('Credits and Grades must be a row array') elseif L1~=L2; error('Array inputs for credits and grades must be the same size') end

for i = 1:numel(credits) if credits(i) < 1 credits(i) > 4 grades(i) < 0 grades(i) > 4 error('credits must be an integer between 1-4 and grades must be an integer between 0-4'); end end

% TO CALCULATE GPA % STEP 1. multiply the point value of the letter grade by the number of credit % hours. The result is the grade points. x = 0; for i = 1:numel(credits) x = credits(i)*grades(i) + x; end % STEP 2. Total the credit hours for the term total = 0; for i = 1:numel(credits) total = total + credits(i); end % STEP 3. divide the total quality points by the total credit hours GPA = x/total; end

Answer 1

[Star Strider]

Just a guess, but you might want to include a call to isinteger for each value, and have your code do whatever your assignment tells you to do with a non-integer value.