讨论了单纯形分布非线性模型的局部影响分析问题。应用Cook(1986)的影响曲率方法研究了该模型关于微小扰动的局部影响,得到了局部影响分析的曲率度量。同时也应用Poon W Y和Poon Y S(1997)的保形法曲率方法研究了该模型的局部影响。对常见的扰动模型,分别进行了局部影响分析,得到了计算影响矩阵的简洁公式。最后还研究了两个实例,说明文中方法的应用价值。
This paper studies the local influence analysis for the nonlinear simplex distribution models, based on the local influence method introduced by Cook (1986) and the conformal normal curvature introduced by Poon W Y &. Poon Y S:(1997). Several perturbation schemes are discussed for the model and the influence matrices are obtained with a simple matrix notation. Two examples are given to illustrate the applications of the results.