# Blocked Standard Error of the Mean

From Rizzo_Lab

Let X be a time dependent vector of length M.

Brake X into N number of blocks.

Let m = FLOOR(M/N) be the block sizes.

Let r = M mod N be the remainder.

for {B1,B2, ... BM} be the blocks.

Sudo code

for N = 2:M start = 1 a is an array of lenth M for i = 1:N if i > r stop = start+m else stop = start+m+1 B = X(start:stop) a[i] = mean(B) bsem = sem(a)