4 papers
Modeling sign concordance of quantile regression residuals with multiple outcomes
Silvia Columbu, Paolo Frumento, Matteo Bottai
Quantile regression permits describing how quantiles of a scalar response variable depend on a set of predictors. Because a unique definition of multivariate quantiles is lacking,…
Parametric Modeling of Quantile Regression Coefficient Functions with Longitudinal Data
Paolo Frumento, Matteo Bottai, Iván Fernández-Val
In ordinary quantile regression, quantiles of different order are estimated one at a time. An alternative approach, which is referred to as quantile regression coefficients modelin…
On mean decomposition for summarizing conditional distributions
Celia García-Pareja, Matteo Bottai
We propose a summary measure defined as the expected value of a random variable over disjoint subsets of its support that are specified by a given grid of proportions, and consider…
Mean survival by ordered fractions of population with censored data
Celia García-Pareja, Matteo Bottai
We propose a novel approach for estimating mean survival time in the presence of censored data, in which we divide the population under study into survival-ordered fractions define…