Trouble using while loop

Question

Alexander Nicholas 2017-4-17

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/335766-trouble-using-while-loop

回答： Nick 2017-4-17

I am trying to get the number of times the value tempv is 50 or higher, as well as the average of tempv, both using a while loop. I entered the below

clear, clc
tempv = [50, 60, 65, 30, 40, 66, 30, 55, 72, 72, 75, 50, 60, 65, 30, 40, ... 
            66, 30, 55, 63, 72, 75, 50, 60, 65, 30, 40, 66, 30, 55, 53];
% Write your code here:
n=0;
x=length(tempv);
sum=0;
i=0;
while i<31
    if tempv(i) >= 50 && tempv(i) <= 75
        n=n+1;
        fprintf('It was a warm day on May %i\n', i)
    end
sum=sum+tempv(i);
end
fprintf('In May the number of days the T was over 50 was: %i\n', n)
y=sum/x;
fprintf('The average temperature in Fahrenheit was:  %f\n', y)