Description Usage Arguments Value Author(s) References Examples
Function that uses an integer programming formulation for allocation of the overall sample size n to the strata, for the following purpose: Coefficient of Variation of the estimate of total for the survey variable is minimized.
1 |
Nh |
Vector with number of population elements, or population size, in stratum h |
Sh2x |
Vector with population variance of the variable X in stratum h. |
n |
Sample size. |
H |
Number of strata. |
nmin |
Minimum sample size (smallest possible sample size in any stratum). The default is 2. |
X |
Population Total |
takeall |
Take-all stratum (takeall=TRUE) => nH=NH. |
solution |
Vector with sample of size by stratum and coefficient of variation for the estimator of total of the stratification variable considered. |
Jose Brito (jambrito@gmail.com), Pedro Silva, Gustavo Semaan and Nelson Maculan.
Brito, J.A.M, Silva, P.L.N.,Semaan, G.S. and Maculan, N. (2015). Integer Programming Formulations Applied to Optimal Allocation in Stratified Sampling. Survey Methodology, 41: 427-442.
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