🌙

方差稳定化与自助法

Variance Stabilization and the Bootstrap

Biometrika · 1988
被引 8
ABS 4

中文导读

研究了一种通过初始自助步骤自动估计方差稳定化变换的方法,用于计算自助t置信区间,该区间在某些情况下二阶正确、不变性且计算量更少,与Efron的BCa方法结果相似。

Abstract

We investigate the use of a variance stabilizing transformation for the computation of a bootstrap t confidence interval. The transformation is estimated in an ‘automatic’ manner through an initial bootstrap step. A bootstrap t interval is then computed for the variance stabilized parameter and the interval is mapped back to the original scale. The resultant procedure is second-order correct in some settings, invariant and in a number of examples it performs better than the usual untransformed bootstrap / interval. It also requires far less computation. The new interval is compared with Efron's BCa procedure and the two methods are seen to produce similar results.

统计学计量经济学自助法置信区间