SORT

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SORT	Encontrados 7 registros	La búsqueda tardó 0.01 segundos.

2 p, 27.4 KB

Editor report / Guillén, Montserrat (Universitat de Barcelona. Departament d'Econometria)
2008
SORT : statistics and operations research transactions, Vol. 32, Núm. 1 (January-June 2008) (Articles)

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46 p, 2.2 MB

Construction of multivariate distributions : a review of some recent results / Sarabia, José María (Universidad de Cantabria. Departamento de Economía) ; Gómez-Déniz, Emilio (Universidad de Las Palmas de Gran Canaria)
The construction of multivariate distributions is an active field of research in theoretical and applied statistics. In this paper some recent developments in this field are reviewed. Specifically, we study and review the following set of methods: (a) Construction of multivariate distributions based on order statistics, (b) Methods based on mixtures, (c) Conditionally specified distributions, (d) Multivariate skew distributions, (e) Distributions based on the method of the variables in common and (f) Other methods, which include multivariate weighted distributions, vines and multivariate Zipf distributions.
2008
SORT : statistics and operations research transactions, Vol. 32, Núm. 1 (January-June 2008) , p. 3-36

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8 p, 444.3 KB

A note on interval estimation for the mean of inverse Gaussian distribution / Arefi, M. (Isfahan University of Technology) ; Mohtashami Borzadaran, G. R. (Ferdowsi University of Mashhad) ; Vaghei, Y. (University of Birjand)
In this paper, we study the interval estimation for the mean from inverse Gaussian distribution. This distribution is a member of the natural exponential families with cubic variance function. Also, we simulate the coverage probabilities for the confidence intervals considered. [...]
2008
SORT : statistics and operations research transactions, Vol. 32, Núm. 1 (January-June 2008) , p. 49-56

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10 p, 87.7 KB

A note on the likelihood and moments of the skew-normal distribution / Martínez, Eliseo H. (Universidad de Antofagasta) ; Varela, Héctor (Universidad de Antofagasta) ; Gómez, Héctor W. (Universidad de Atacama (Chile)) ; Bolfarine, Heleno (Universidad de Sao Paulo)
In this paper an alternative approach to the one in Henze (1986) is proposed for deriving the odd moments of the skew-normal distribution considered in Azzalini (1985). The approach is based on a Pascal type triangle, which seems to greatly simplify moments computation. [...]
2008
SORT : statistics and operations research transactions, Vol. 32, Núm. 1 (January-June 2008) , p. 57-66

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10 p, 535.4 KB

Empirical comparison between the Nelson-Aalen Estimator and the Naive Local Constant Estimator / Pérez-Marín, Ana M.. (Universitat de Barcelona)
The Nelson-Aalen estimator is widely used in biostatistics as a non-parametric estimator of the cumulative hazard function based on a right censored sample. A number of alternative estimators can be mentioned, namely, the naive local constant estimator (Guillén, Nielsen and Pérez-Marín, 2007) which provides improved bias versus variance properties compared to the traditional Nelson-Aalen estimator. [...]
2008
SORT : statistics and operations research transactions, Vol. 32, Núm. 1 (January-June 2008) , p. 67-76

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16 p, 135.0 KB

An alternative analysis of variance / Longford, Nicholas T. (SNTL, Reading, United Kingdom) ; Universitat Pompeu Fabra
The one-way analysis of variance is a staple of elementary statistics courses. The hypothesis test of homogeneity of the means encourages the use of the selected-model based estimators which are usually assessed without any regard for the uncertainty about the outcome of the test. [...]
2008
SORT : statistics and operations research transactions, Vol. 32, Núm. 1 (January-June 2008) , p. 77-92

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20 p, 609.5 KB

Canonical non-symmetrical correspondence analysis : an alternative in constrained ordination / Willems, Priscila M. (Instituto Nacional de Tecnología Agropecuaria (Argentina)) ; Villardon, Galindo ; Purificación, M. (Universidad de Salamanca)
Canonical non-symmetrical correspondence analysis is developed as an alternative method for constrained ordination, relating external information (e. g. , environmental variables) with ecological data, considering species abundance as dependant on sites. [...]
2008
SORT : statistics and operations research transactions, Vol. 32, Núm. 1 (2008) , p. 93-112

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