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作者:BRIEN, CJ; JAMES, AT; VENABLES, WN
作者单位:University of Adelaide
摘要:A procedure similar to an analysis of variance is presented for examining the structure in correlation matrices whose variables are cross-classified by two factors, such as multitrait-multimethod matrices. The method tests an equal correlation hypothesis against natural alternative hypotheses suggested by group representations. When there is significant departure from the hypothesized pattern, alternative models to be pursued are indicated. The method is illustrated using an example.
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作者:OWEN, AB
摘要:The empirical distribution function based on a sample is well known to be the maximum likelihood estimate of the distribution from which the sample was taken. In this paper the likelihood function for distributions is used to define a likelihood ratio function for distributions. It is shown that this empirical likelihood ratio function can be used to construct confidence intervals for the sample mean, for a class of M-estimates that includes quantiles, and for differentiable statistical functi...
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作者:KUO, L
摘要:The prior distribution on the class of potency curves in quantal bioassay is assumed to be Ferguson''s Dirichlet distribution. Given integrated squared error loss and quantal response data, we derive the Bayes estimator in a linear space generated by the data. Some numerical examples and asymptotic results are also given.
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作者:DAVISON, AC; HINKLEY, DV
作者单位:University of Texas System; University of Texas Austin
摘要:Saddlepoint approximations are shown to be easy to use and accurate in a variety of simple bootstrap and randomization applications. Examples include mean estimation, ratio estimation, two-sample comparisons, and autoregressive estimation.
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作者:BROWNE, MW
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作者:GOWER, JC; HARDING, SA
摘要:The classical biplot (Gabriel, 1971) of a multivariate sample X of n units by p variables is generalized for any Euclidean imbeddable metric dij. Sample-units are represented in the usual way by points in an ordination, most conveniently using principal coordinates. Variables are represented by a set of p concurrent nonlinear trajectories whose lengths and dispositions relative to the sample points aid interpretation. When dij2 is defined to have independent contributions from each variable, t...
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作者:MALLER, RA
摘要:A simple sufficient condition for the existence, consistency and asymptotic normality of the regression coefficient in the exponential model for survival is given. The intuition that consistent estimation can only be guaranteed when censoring variables are not too small, depending on the values of the covariates, can be quantified in some examples with the use of this condition.
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作者:CURNOW, RN
作者单位:Australian National University
摘要:The selection of the best variety of a crop to grow in a particular region can be based solely on the yields of the varieties in trials within that region or on the yields of the varieties averaged over trials within the region and trials in a number of similar regions. For a wide range of values of the parameters, the better of these two methods is shown to be almost as effective as selection based on an index combining, in a optimal way, the information from the particular region and from th...
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作者:LEITE, JG; OISHI, J; PEREIRA, CAD
摘要:Using data obtained by the general capture-recapture sequential sampling process, an analytical expression for the maximum likelihood estimate of the population size is introduced. It is shown that the bounded likelihood functions have at most two maxima. For the simple one-to-one case the estimate is unique.
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作者:VERBYLA, AP; VENABLES, WN
摘要:An extension of the growth curve model of Potthoff and Roy (1964) is presented. The extension arises naturally when parallel profiles are required, or profiles are concurrent at some known time point and may be of use for th analysis of longitudinal data from designed experiments. Linearization of a nonlinear model also results in this model. Under certain conditions, transformation of the model leads to seemingly unrelated multivariate regressions. In this case questions of identifiability an...