本文在平方损失函数下,考虑了刻度参数的最小风险同变估计Tn有关的一般同变估计类£2={Tn[1+(∑n(i=i)X^2i)^-1/2∑^n(i=1)ci|Xi|],ci≥0}中估计的ε-稳定性,同时也对正态分布中刻度参数σ的估计的ε-稳定性作了细致的讨论。
In this paper,we consider the ε-stability in a class of equivariant estimators £ 2under the loss function L(σ,d)=(1-d/σ)^2.We also particular study the ε-stability of scale paramter σ in normal distribution.