Rank regression for analysis of clustered data: A natural induced smoothing approach

Liya Fu, You-Gan Wang and Zhidong Bai

Computational Statistics & Data Analysis, 2010, vol. 54, issue 4, 1036-1050

Abstract: We consider rank regression for clustered data analysis and investigate the induced smoothing method for obtaining the asymptotic covariance matrices of the parameter estimators. We prove that the induced estimating functions are asymptotically unbiased and the resulting estimators are strongly consistent and asymptotically normal. The induced smoothing approach provides an effective way for obtaining asymptotic covariance matrices for between- and within-cluster estimators and for a combined estimator to take account of within-cluster correlations. We also carry out extensive simulation studies to assess the performance of different estimators. The proposed methodology is substantially much faster in computation and more stable in numerical results than the existing methods. We apply the proposed methodology to a dataset from a randomized clinical trial.

Date: 2010
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Citations: View citations in EconPapers (7)

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