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Analysis of Factorial Survival Experiments
Biometrics, 1994Several new methodological issues that arise within two-way factorial designs for survival experiments are discussed within the framework of asymptotic theory for the proportional hazards model with two binary treatment covariates. These issues include: the proper formulation of null hypotheses and alternatives, the choice among log-rank and adjusted ...
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2014
Writing software is not like producing cars: its production process has a high degree of variability. To gain insights on how to improve a software development process, an approach is needed that systematically collects, organizes, and reuses experience.
Andrea Janes, Giancarlo Succi
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Writing software is not like producing cars: its production process has a high degree of variability. To gain insights on how to improve a software development process, an approach is needed that systematically collects, organizes, and reuses experience.
Andrea Janes, Giancarlo Succi
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Design Keys for Factorial Experiments
Applied Statistics, 1978This paper describes the use of design keys in (a) identifying treatment effects with particular plot contrasts in factorial experiments and (b) constructing the designs. The method covers a wide variety of block structures. It is available for both symmetrical and asymmetrical designs.
Patterson, H. D., Bailey, R. A.
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Fractional Factorial Experiments
2017When there are numerous treatment factors to be examined but a limited budget, it may only be possible to observe a small proportion of the treatment combinations. Some main-effect and interaction contrasts cannot then be distinguished and are said to be aliased.
Angela Dean +2 more
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Factorial Experiments with Time Trends
Technometrics, 1988Time trends may affect the results of experiments that are conducted sequentially. A simple, yet powerful, way to model such an experiment is to represent the trend by an autoregressive integrated moving average time series model. I show how such models can be used to jointly estimate factorial and time-order effects and how they can be used as a ...
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Computational procedure for factorial experiments
Behavioral Science, 1966Computer calculations for analysis of variance continue to baffle many. This paper gives a step-by-step explanation of one common type of such analysis.
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InterEffectOrthogonality in Factorial Experiments
Calcutta Statistical Association Bulletin, 1979A set of necessary and sufficient conditions has been established for best linear estimates of estimable treatment contrasts belonging to different facotrial effects to be mutually orthogonal. The cases of both connected and disconnected designs have been considered.
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