Functions in this package provide solution to classical problem in survey methodology  an optimum sample allocation in stratified sampling schemes. In this context, the optimal allocation is in the classical TschuprovNeyman's sense and it satisfies additional lower or upper bounds restrictions imposed on sample sizes in strata. There are few different algorithms available to use, and one them is based on popular sample allocation method that applies Neyman allocation to recursively reduced set of strata. This package also provides the function that computes a solution to the minimum sample size allocation problem, which is a minor modification of the classical optimium sample allocation. This problem lies in the determination of a vector of strata sample sizes that minimizes total sample size, under assumed fixed level of the piestimator's variance. As in the case of the classical optimal allocation, the problem of minimum sample size allocation can be complemented by imposing upper bounds constraints on sample sizes in strata.
Package details 


Author  Wojciech Wójciak [aut, cre], Jacek Wesołowski [sad], Robert Wieczorkowski [ctb] 
Maintainer  Wojciech Wójciak <wojciech.wojciak@gmail.com> 
License  GPL2 
Version  2.1.0 
URL  https://github.com/wwojciech/stratallo 
Package repository  View on CRAN 
Installation 
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