摘要:

The distributions of X,Yand (X.Y), where X andYare random variables with probability functions of a logarithmic series law, are characterized by the regression function of X onYand the conditional distribution of Y given X. Moreover, characterizations are given for binomial or Pascal conditional distributions in terms of the regression function of X on Y and the marginal distribution of X.

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1991.tb01288.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

The consequences of the omission of possibly contaminated observations in a linear regression model for the performance of the ordinary least squares (LS‐) estimator are discussed. We compare the ordinary L Sestimator with the corresponding ‘never pooled’LS‐estimator with respect to the matrix‐valued mean squared error. Necessary and sufficient conditions are derived for the superiority of an estimator to another one and tests are proposed to check these conditions. Finally the resulting preliminary‐test‐estimators are

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1991.tb01289.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

In this paper, firstly an introduction to the idea of record values for a sequence of independent and identically (Lomax or Pareto II) distributed random variables is given. Some of the distributional properties of these record values and moments up to second order are derived. These moments clearly depend on the location, scale and shape parameter of the Lomax distribution and two types of estlmators of these parameters, based on a series of observed record values are presented.

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1991.tb01290.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

Two probabilistic shake‐and‐bake algorithms are presented to detect nonredundant constraints in a full dimensional system of linear inequalities. The algorithms proceed by generating a random sequence of points on the boundary of a polyhedron, and by searching for a nonredundant constraint in the direction of a random vector from each point in the sequence. The limiting distribution of the sequence of points generated by the algorithms is proven to be uniform on the boundary of the polyhed

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1991.tb01291.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

Bayesian and empirical Bayesian estimation methods are reviewed and proposed for the row and column parameters in two‐way Contingency tables without interaction. Rasch's multiplicative Poisson model for misreadings is discussed in an example. The case is treated where assumptions of exchangeability are reasonablea priorifor the unknown parameters. Two different types of prior distributions are compared, It appears that gamma priors yield more tractable results than lognormal prior

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1991.tb01292.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1991.tb01293.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1991.tb01294.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY