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Thursday, October 7
Thu, Oct 7, 1:15 PM - 2:30 PM
Celebrating Our Technical Expertise

Implementing Order and Shape Constraints in Survey Data Analysis (309772)

*Xiyue Liao, California State University, Long Beach  
Mary C. Meyer, Colorado State University  

Keywords: Order Restrictions, Isotonic, Domain means, R package

Recent work in survey domain estimation has shown that incorporating a priori assumptions about orderings of population domain means reduces the variance of the estimators, hence providing smaller confidence intervals with good coverage. Estimation of domain means in empty cells is often possible without additional assumptions, and improvement in coverage for small cells. A test for constant versus increasing domain means is implemented. The R package csurvey, available on CRAN, allows users to implement order and shape constraints in a format similar to that of the well known survey package.