Martin Mächler

TL;DR: Scatterplot3d is an R package for the visualization of multivariate data in a three dimensional space designed by exclusively making use of already existing functions of R and its graphics system and thus shows the extensibility of the R graphics system.

TL;DR: Essex Speaks Statistics (ESS) provides an intelligent and consistent interface between the user and statistics software that understands the syntax for numerous data analysis languages, provides consistent display and editing features across packages, and assists in the interactive or batch execution of statements by statistics packages.

TL;DR: In this paper, the performance of known and new parametric estimators for the parameters of Archimedean copulas is investigated and related numerical difficulties are addressed, in particular, method-of-moments-like estimators based on pairwise Kendall's tau, a multivariate extension of Blomqvist's beta, minimum distance estimators, the maximum likelihood estimator, a simulated maximum-likelihood estimator and a maximum likelihood estimation based on the copula diagonal.

TL;DR: The performance of known and new parametric estimators for the parameters of Archimedean copulas is investigated and related numerical difficulties are addressed and the numerical solutions developed extend to various asymmetric generalizations and important quantities such as distributions of radial parts or the Kendall distribution function.

TL;DR: In this article, the authors proposed a smoothed version of the maximum penalized likelihood (MPL) estimator with a novel roughness penalty, which penalizes a relative change of curvature.