1.3k citations · 2.6k across the 16 of their papers we have counts for
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On the use of splines for representing ordered factors
Adelchi Azzalini
In the context of regression-type statistical models, the inclusion of some ordered factors among the explanatory variables requires the conversion of qualitative levels to numeric…
On the use of ordered factors as explanatory variables
Adelchi Azzalini
Consider a regression or some regression-type model for a certain response variable where the linear predictor includes an ordered factor among the explanatory variables. The inclu…
Combining local and global smoothing in multivariate density estimation
Adelchi Azzalini
Non-parametric estimation of a multivariate density estimation is tackled via a method which combines traditional local smoothing with a form of global smoothing but without imposi…
Sample selection models for discrete and other non-Gaussian response variables
Adelchi Azzalini, Hyoung-Moon Kim, Hea-Jung Kim
Consider observation of a phenomenon of interest subject to selective sampling due to a censoring mechanism regulated by some other variable. In this context, an extensive literatu…
Maximum penalized likelihood estimation for skew-normal and skew- distributions
Adelchi Azzalini, Reinaldo B. Arellano-Valle
The skew-normal and the skew- distributions are parametric families which are currently under intense investigation since they provide a more flexible formulation compared to th…
Selection models under generalized symmetry settings
Adelchi Azzalini
An active stream of literature has followed up the idea of skew-elliptical densities initiated by Azzalini and Capitanio (1999). Their original formulation was based on a general l…