摘要:It is a great pleasure for me to make available to you the second number of Volume 4 of 2013 of the Chilean Journal of Statistics, published by the Chilean Statistical Society. Seven papers are included in this issue. These papers cover the following topics: some properties of the Beta Weibull Poisson and Beta Inverse Rayleigh distributions, stochastic representations and a geometric parametrization of the two-dimensional Gaussian law, a new version of local linear estimators, clustering using submixtures of Gaussian distributions, e.ect of frailty term in the standard mixture model, and statistical analysis of locally stationary processes.