How to compute harmonic average on the blocks of an array?
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Hi,
I have attached the data Mmin, I want to compute the harmonic average of first 4 values and then next 4 and so on. In short in the blocky form and each block is of 4 values.
Just like shown in the attached figure. after taking harmonic mean of first four values, there will be one value instead of four and so on.
Can someone help me to write it code?
Thanks
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David Hill
2022년 8월 17일
a=randi(100,1,100);%some vector
for k=1:length(a)-3
A(k)=harmmean(a(k:k+3));
end
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David Hill
2022년 8월 18일
편집: David Hill
2022년 8월 18일
I misunderstood you. I thought you wanted a rolling harmonic mean 1-4 then 2-5, then 3-6, 4-7, etc. I simple change will correct.
a=randi(100,1,32);%some vector
c=1;
for k=1:4:length(a)-3
A(c)=harmmean(a(k:k+3));
c=c+1;
end
A
Or
m=movsum(1./a,4,'Endpoints','discard');
A=4./m(1:4:end)
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