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协方差分析中的多重比较程序AI 解读

Currently available range-type procedures for constructing simultaneous confidence intervals on contrasts in analysis of covariance (ANCOVA) models with random covariates assume that the vectors of covariates associated with the observations are identically distributed. Conditions are given under which the mean vectors of these covariates may differ without affecting the validity of such procedures. An example of a controlled test market experiment illustrates the usefulness…

多项式 monospline 回归的容许设计AI 解读

Admissible designs for polynomial monospline regression are shown to be a proper subset of the admissible designs for spline regression. Sufficient conditions are given for designs for polynomial monospline regression to be admissible, and examples are used to show that simply counting points in intervals does not determine admissibility for monospline functions.