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A nonparametric visual test of mixed hazard models
(Institut d'Estadística de Catalunya, 2014-01-02)
Article.
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Article.
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We consider mixed hazard models and introduce a new visual inspection technique capable of detecting the credibility of our model assumptions. Our technique is based on a transformed data approach, where the density of the ...
Analysis of inequality in fertility curves fitted by gamma distributions
(Institut d'Estadística de Catalunya, 2014-01)
Article.
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Article.
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The aim of this paper is to analyse fertility curves from a novel viewpoint, that of inequality. Through sufficient conditions that can be easily verified, we compare inequality, in the Lorenz and
Generalized Lorenz sense, ...
Selection and pattern mixture models for modelling longitudinal data with dropout: An application study
(Institut d'Estadística de Catalunya, 2014-01)
Article.
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Article.
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Incomplete data are unavoidable in studies that involve data measured or observed longitudinally on individuals, regardless of how well they are designed. Dropout can potentially cause serious bias problems in the analysis ...
Quantile estimation of the rejection distribution of food products integrating assessor values and interval-censored consumer data
(Institut d'Estadística de Catalunya, 2014-01-02)
Article.
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Article.
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Fitting parametric survival models with interval-censored data is a common task in survival analysis and implemented in many statistical software packages. Here, we present a novel
approach to fit such models if the values ...
An alternative to Kim and Warde’s mixed randomized response model
(Institut d'Estadística de Catalunya, 2014-01)
Article.
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Article.
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When open or direct surveys are about sensitive matters (e.g. gambling habits, addiction to drug and others intoxicants, alcoholism, proneness to tax invasion, induced abortions, drunken driving, history of past involvement ...
Double bounded Kumaraswamy-power series class of distributions
(Institut d'Estadística de Catalunya, 2013-01)
Article.
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Article.
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In this paper, we will introduce the new Kumaraswamy-power series class of distributions. This new class is obtained by compounding the Kumaraswamy distribution of Kumaraswamy (1980) and the family of power series ...
Locally adaptive density estimation on Riemannian manifolds
(Institut d'Estadística de Catalunya, 2014-01)
Article.
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Article.
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In this paper, we consider kernel type estimator with variable bandwidth when the random variables belong in a Riemannian manifolds. We study asymptotic properties such as the consistency and the asymptotic distribution. ...