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作者：ZEGER, SL
摘要：This paper discusses a model for regression analysis with a time series of counts. Correlation is assumed to arise from an unobservable process added to the linear predictor in a log linear model. An estimating equation approach used for parameter estimation leads to an iterative weighted and filtered least-squares algorithm. Asymptotic properties for the regression coefficients are presented. We illustrate the technique with an analysis of trends in U.S. polio incidence since 1970.
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作者：GREENACRE, MJ
摘要：A generalization of correspondence analysis to multivariate categorical data is proposed, where all two-way contingency tables of a set of categorical variables are simultaneously fitted by weighted least-squares. An alternating least-squares algorithm is developed to perform the fitting. This technique has a number of advantages over the usual generalization known as multiple correspondence analysis. It is also an analogue of least-squares factor analysis for categorical data.
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作者：BARLOW, WE; PRENTICE, RL
作者单位：Fred Hutchinson Cancer Center
摘要：Several possible definitions of residuals are given for relative risk regression with time-varying covariates. Each such residual has a representation as an estimator of a stochastic integral with respect to the martingale arising from a subject''s failure time counting process. Previously proposed residuals for individual study subjects and for specific time points are shown to be special cases of this definition, as are previously derived regression diagnostics. An illustration and various g...
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作者：KUK, AYC
摘要：We consider sampling with probability proportional to size or aggregate size and derive a number of estimators of the finite population distribution function. The estimators are compared theoretically and empirically. By inverting the distribution function estimators, we obtain estimators of the finite population median. The performance of these median estimators are investigated.
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作者：MUKERJEE, H
摘要：There is an extensive literature on inferences from independent random samples about several normal means under order restrictions. The purpose of this note is to point out these results have very simple generalizations to one repeated measures model.
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作者：CHOI, YJ; SEVERO, NC
摘要：Hill and Severo (1969) and Kryscio (1972) present approximations to the maximum likelihood estimator of the infection rate of the simple stochastic epidemic model. These approximations, valid under some restrictions on the data set, use a table published by Hill and Severo (1969). We give here an algebraically simpler approximation, which does not use an auxiliary table and may be applied to all data sets.
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作者：OMAN, SD; SEIDEN, E
摘要：Switch-back designs, originally proposed for cow lactation experiments, are repeated measurement designs appropriate for experiments in which the responses of experimental units vary with time according to different rates. A method for constructing such designs to compare an arbitrary number of treatments is presented, together with their analysis of variance. Robustness of the switch-back design when the treatments have residual as well as main effects is considered. Switch-back and balanced ...
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作者：TAM, SM
摘要：A probability sampling plan is suggested in this paper for drawing the sample so that the linear least-squares predictor of the total of a finite population is made asymptotically design-unbiased. Conditions are given for the sampling plan to reduce to the more familiar sample designs discussed in the literature.
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作者：TAWN, JA
摘要：Bivariate extreme value distributions arise as the limiting distributions of renormalized componentwise maxima. No natural parametric family exists for the dependence between the marginal distributions, but there are considerable restrictions on the dependence structure. We consider modelling the dependence function with parametric models, for which two new models are presented. Tests for independence, and discriminating between models, are also given. The estimation procedure, and the flexibi...
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作者：WEI, LJ
摘要：In comparing two treatments in a clinical trial, the randomized play-the-winner rule tends to assign more study subjects to the better treatment. It is applicable when patients have delayed responses to treatments. It is not deterministic and is less vulnerable to experimental bias than other adaptive designs. In this paper, an efficient algorithm is provided to construct exact permutation tests for testing the equality of the two treatments with the randomized play-the winner rule. The test p...
