Flexible quantile regression models : application to the study of the purple sea urchin

In many applications, it is often of interest to assess the possible relationships between covariates and quantiles of a response variable through a regression model. In some instances, the effects of continuous covariates on the outcome are highly nonlinear. Consequently, appropriate modelling has...

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Detalles Bibliográficos
Autores: Martínez-Silva, Isabel, Roca-Pardiñas, Javier, Lustres-Pérez, Vicente, Lorenzo-Arribas, Altea, Cadarso-Suárez, Carmen
Tipo de recurso: artículo
Fecha de publicación:2013
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:113246
Acceso en línea:https://ddd.uab.cat/record/113246
Access Level:acceso abierto
Palabra clave:Boosting
Quantile regression
Reference curves
Smoothness
Descripción
Sumario:In many applications, it is often of interest to assess the possible relationships between covariates and quantiles of a response variable through a regression model. In some instances, the effects of continuous covariates on the outcome are highly nonlinear. Consequently, appropriate modelling has to take such flexible smooth effects into account. In this work, various flexible quantile regression techniques were reviewed and compared by simulation. Finally, all the techniques were used to construct the overall zone specific reference curves of morphologic measures of sea urchin Paracentrotus lividus (Lamarck, 1816) located in NW Spain.