Assigning letter grades code

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Not_sharpest_tool.mat
回答： Cris LaPierre 2018-10-15
Hello, I'm trying to do an assignment that has to calculate mean and assign letter grades to grades from an excel document. I've successfully got the mean but I cant get the letter grade part to work. Any suggestions?
endgradebook = xlsread('E');
display (gradebook)
for i=1:95
average(i)= mean(gradebook(i,1:5));
end
display(average)
for i=1:95
average(i)=mean(gradebook(i,1:5);
if(average(i)<=59)
letter{i}= 'F';
elseif(average(i)<=69)
letter{i}= 'D';
elseif(average(i)<=79)
letter{i}= 'C';
elseif(average(i)<=89)
letter{i}= 'B';
else
letter{i}= 'A';
end
end
  3 个评论
显示 1更早的评论
Not_sharpest_tool.mat
Not_sharpest_tool.mat 2018-10-14
Thanks, the problem was the second mean calculation. I erased it and it worked.
Walter Roberson
Walter Roberson 2018-10-14
Should not have made a difference, it was just repeating what had already been calculated.

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回答（1 个）

Cris LaPierre
Cris LaPierre 2018-10-15
Your second calculation of mean is missing a closing parentheses, though that may just be a copy/paste error.
...
for i=1:95
average(i)=mean(gradebook(i,1:5);
...

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