摘要:

A new necessary and sufficient condition for the linear model of variance components to be Hsu model are given

ISSN:0233-1888    

DOI:10.1080/02331888908802160

出版商:Akademie-Verlag    

年代:1989

数据来源: Taylor

摘要:

We consider a nonlinear regression model under standard assumptions on the error distribution, We prove an almost sure convergence of weighted sums with an interesting uniformity, and under very general conditions on the parameter space and the regression function we prove the a.s, boundedness and the strong consistency of the least squares estimator, Here we generalize results of Jennrich (1969) to unbounded parameter spaces

ISSN:0233-1888    

DOI:10.1080/02331888908802161

出版商:Akademie-Verlag    

年代:1989

数据来源: Taylor

摘要:

For the model of simple linear regression through the origin and unconditional neighborhoods (errors–in–variables) as well as conditional neighborhoods (error–free–variables) of theL1–type, an estimator of the slope of the regression line is derived which, among all estimators, is minimax at finite sample size and extends Huber's (1964) robust interval estimator of location

ISSN:0233-1888    

DOI:10.1080/02331888908802162

出版商:Akademie-Verlag    

年代:1989

数据来源: Taylor

ISSN:0233-1888    

DOI:10.1080/02331888908802163

出版商:Akademie-Verlag    

年代:1989

数据来源: Taylor

摘要:

The paper extends HUBER'S 1981 result that the median minimizes the maximal bias over the symmetric unimodal ε–contaminated model; the extension assurness neither unimodality nor symmetry

ISSN:0233-1888    

DOI:10.1080/02331888908802164

出版商:Akademie-Verlag    

年代:1989

数据来源: Taylor

ISSN:0233-1888    

DOI:10.1080/02331888908802165

出版商:Akademie-Verlag    

年代:1989

数据来源: Taylor

摘要:

The paper studies the bias-robustiness of a special class of M-estimators of location which are nor necessarily FISHR consistent. The existence and the form of the most robust M-estimatiors is established under some conditions

ISSN:0233-1888    

DOI:10.1080/02331888908802166

出版商:Akademie-Verlag    

年代:1989

数据来源: Taylor

摘要:

The aim of this paper is to combine the outlier–behaviour of certain distribution families and the ability of a most powerful level–α–test to separate hypotheses in these families for small α. It turns out that certain location families are well separable in this sense if and only if the underlying distribution is outlier–resistant. Analogous results hold for certain scale families

ISSN:0233-1888    

DOI:10.1080/02331888908802167

出版商:Akademie-Verlag    

年代:1989

数据来源: Taylor

摘要:

General results are given about the asymptotic convergence of the Infinitesimal Jackknife estimation method. The development until the order four are given. The Infinitesimal Jackknife method is used to give stability index of the results of a PCA. The exact variance of a bootstrapped variance matrix is given. Infinitesimal Jackknife estimates are obtained for the bias and variances of eigenvalues, eigenvectors and stability index for a PCA on a variance or a correlation matrix. The Infinitesimal Jackknife method is compared with the bootstrap on real data

ISSN:0233-1888    

DOI:10.1080/02331888908802168

出版商:Akademie-Verlag    

年代:1989

数据来源: Taylor

摘要:

Comparison is made between prescribed failure rate functions and teir estimators based on pseudorandom samples containing tied and censored observations. The U–shaped, unimodal and bimodal failure rate functions were studied. Some practical ways for improving the proposed estimation procedure are dicussed

ISSN:0233-1888    

DOI:10.1080/02331888908802169

出版商:Akademie-Verlag    

年代:1989

数据来源: Taylor