Question

I need help on calculating a current overall average for this data in MatLab. I need to make another vector for the data where each position is a current average. I've looked around online to try and get an idea of what to do and I saw the things about there being a moving average function or using filter. But we haven't talked about those in my class so I can't use them. I think a for loop could do it but I can't figure it out. The data is 97, 80, 79, 64, 71, 77, 95, 81, 73, 84, 86, 96, 83, 69, 64, 66, 59, 72, 67, 65, 65, 64, 59, 68, 75, 62, 77, 58, 66, 56, 53, 62. The output for the home score should be 97, 88. 85.3, 80.0, 78.2, 80.4, 80.5, 79.7, 80.1, 80.6, 81.9, 82.0, 81.1, 79.9, 79.1, 77.9, 77.6, 77.0, 76.4, 75.8, 75.0, 74.7, 74.8, 74.2, 74.3, 73.7, 73.5, 72.9, 72.2, 71.0.

Answer 1

code:

numbers=0;

result=0;

while 1

n=str2double(input('Enter an integer: ', 's'));

result=result*numbers+n;

numbers=numbers+1;

result=result/numbers;

fprintf('Current average is: %f\n', result);

end

For indendation:

Sample i/o:

Explanation:

Average is (sum of all numbers)/count. Hence in each iteration find the previous sum by multiplying average*count. Now add value read from console to previous sum and increment the count and print the average.