how i can calculate the average of the top numbers

i have 20 numbers , i need to calculate the average of the top 8 scores , how i can do it using matlab

Answer 1

[Azzi Abdelmalek]

If A is your vector

b=sort(A,'descend')
out=mean(b(1:8))

[mohammed]

my question is write a computer program that calculates the average of the top 8 numbers

[mohammed]

plz help me here http://www.mathworks.com/matlabcentral/answers/108129-sort-using-condional-statement-and-loops-without-using-built-in-function-sort

[mohammed]

[Image Analyst]

You can find sorting routines on the internet, for example wikipedia. You can program that up yourself - I don't think you need us for that.