# Typo in Example 5.18

October 2, 2010
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(This article was first published on Xi'an's Og » R, and kindly contributed to R-bloggers)

Edward Kao pointed out several typos in Example 5.18 of Monte Carlo Statistical Methods. First, the customers in area i should be double-indexed, i.e.

$Z_{ij}simmathcal{M}(1,(p_1,ldots,p_5))$

which implies in turn that

$T_i=sum_{j=1}^{n_j}Z_{ij}$.

Then the summary T should be defined as

$mathbf{T}=(T_1,T_2,ldots,T_n)$

and $W_5$ as

$W_5=sum_{i=m+1}^nT_{i5},$

given that the first m customers have the fifth plan missing.

Filed under: Books, R, Statistics, University life Tagged: EM algorithm, missing data, Monte Carlo Statistical Methods, typos

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