How to get mean value minute by minute in a vector.

Hi, I have vector of 21422x1and I want to be able to get mean value every 60 second. Is there any way to do this? I also have t2 time variable length 21433.

(sample was taken at 1Hz)

I could get the mean value in excel it self but do not know how I can get the time variable, how to identify the each 60 second ?

Thanks in Advance.

Answer 1

[darova]

If the frequency is 1Hz then:

k = 1;                           % counter of mean value vector 
n = length(v);                   % length of original data vector
m = 60*1;                        % every 60th values at 1Hz frequency
v1 = zeros( fix(n/m),1 );        % vector with mean values
for i = 1:m:n
    v1(k) = mean( v(i:i+m) );
    k = k + 1;
end

Any questions?

[Bob]

Hi,

Error appears with following massage:

Index exceeds the number of array elements (21422).

[darova]

My bad, try:

for i = 1:m:n-m+1