Efficient semiparametric regression for longitudinal data with regularised estimation of error covariance function
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DOI: 10.1080/10485252.2019.1651853
Abstract: ABSTRACT Improving estimation efficiency for regression coefficients is an important issue in the analysis of longitudinal data, which involves estimating the covariance matrix of errors. But challenges arise in estimating the covariance matrix of longitudinal… read more here.
Keywords: longitudinal data; estimation; estimating covariance; covariance function ... See more keywords