2017: Vol. 41, Núm. 1
Summary
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Thirty years of progeny from Chao’s inequality: Estimating and comparing richness with incidence data and incomplete sampling
(Institut d'Estadística de Catalunya, 2017-06-21)
Article
Open AccessIn the context of capture-recapture studies, Chao (1987) de rived an inequality among capture frequency counts to obtain a lower bound for the size of a population bas ed on individuals’ capture/non-capture records for ... -
On a property of Lorenz curves with monotone elasticity and its application to the study of inequality by using tax data
(Institut d'Estadística de Catalunya, 2017-06-21)
Article
Open AccessThe Lorenz curve is the most widely used graphical tool for describing and comparing inequality of income distributions. In this paper, we show that the elasticity of this curve is an indicator of the effect, in terms of ... -
Comparison of two discrimination indexes in the categorisation of continuous predictors in time-to-event studies
(Institut d'Estadística de Catalunya, 2017-06-21)
Article
Open AccessThe Cox proportionalhazards model is the most widely used su rvival prediction model for analysing time-to-event data. To measure the discrimination ability of a survival model the concordance probability index is ... -
Bayesian correlated models for assessing the prevalence of viruses in organic and non-organic agroecosystems
(Institut d'Estadística de Catalunya, 2017-06-21)
Article
Open AccessCultivation of horticultural species under organic management has increased in importance in recent years. However, the sustainability of this new production method needs to be supported by scientific research, especially ... -
Corrigendum to "Transmuted geometric distribution with applications in modelling and regression analysis of count data
(Institut d'Estadística de Catalunya, 2017-06-21)
Article
Open Access -
Goodness-of-fit test for randomly censored data based on maximum correlation
(Institut d'Estadística de Catalunya, 2017-06-21)
Article
Open AccessIn this paper we study a goodness-of-fit test based on the maximum correlation coefficient, in the context of randomly censored data. We construct a new test statistic under general right- censoring and prove its asymptotic ... -
A quadtree approach based on European geographic grids: reconciling data privacy and accuracy
(Institut d'Estadística de Catalunya, 2017-06-21)
Article
Open AccessMethods to preserve confidentiality when publishing geographic information conflict with the need to publish accurate data. The goal of this paper is to create a European geographic grid frame- work to disseminate statistical ... -
A Bayesian stochastic SIRS model with a vaccination strategy for the analysis of respiratory syncytial virus
(Institut d'Estadística de Catalunya, 2017-06-21)
Article
Open AccessOur objective in this paper is to model the dynamics of respiratory syncytial virus in the region of Valencia (Spain) and analyse the effect of vaccination strategies from a health-economic point of view. Compartmental ... -
Statistical modeling of warm-spell duration series using hurdle models
(Institut d'Estadística de Catalunya, 2017-06-21)
Article
Open AccessRegression models for counts could be applied to the earth sciences, for instance when studying trends of extremes of climatological quantities. Hurdle models are modified count models which can be regarded as mixtures of ...
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