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# Vector and matrix average

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matt noman on 8 Feb 2020
Answered: Image Analyst on 9 Feb 2020
how do I find the average of ths function in matlab
a=[2.42,3.4,4.5,5.63]
b=6
I want to find the average by adding all the numbers in a and b together and then divide them by 6 how would I write that code
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stozaki on 9 Feb 2020
a=[2.4,2,3.4,4.5,5.63];
ave_a = mean(a);

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### Answers (2)

stozaki on 9 Feb 2020
a=[2.4,2,3.4,4.5,5.63];
ave_a = mean(a);
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Image Analyst on 9 Feb 2020
Nearly everyone would use mean, like they've told you. However if you want to do it like you said, using the sum and number of elements in the two variables, you'd do this
a=[2.4,2,3.4,4.5,5.63]
b = 6
theSum = sum(a) + sum(b)
numberOfElements = numel(a) + numel(b)
theMean = theSum / numberOfElements
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