A mixed effects changepoint quantile regression model for longitudinal data with application on COVID-19 data
A mixed effects changepoint quantile regression model for longitudinal data with application on COVID-19 data
Introduction Longitudinal individual response profiles could exhibit a mixture of two or more phases of increase or decrease in trend throughout the follow-up period, with one or more unknown transition points (changepoints). The detection and estimation of these changepoints is crucial. Most of the proposed statistical methods for detecting and …