Scientific article
English

Empirical Saddlepoint Approximations for Multivariate M-Estimators

Publication date1994
Abstract

In this paper, we investigate the use of the empirical distribution function in place of the underlying distribution function F to construct an empirical saddlepoint approximation to the density fn of a general multivariate M-estimator. We obtain an explicit form for the error term in the approximation, investigate the effect of renormalizing the estimator, carry out some numerical comparisons and discuss the regression problem.

Keywords
  • Bootstrap
  • M estimation
  • Estimator robustness
  • Linear regression
  • Probability density
  • Multivariate distribution
  • Asymptotic approximation
  • Saddle point
  • Renormalization
  • Small sample
  • Empirical distribution function
Citation (ISO format)
RONCHETTI, Elvezio, WELSH, Alan H. Empirical Saddlepoint Approximations for Multivariate M-Estimators. In: Journal of the Royal Statistical Society. Series B, Statistical methodology, 1994, vol. 56, n° 2, p. 313–326. doi: 10.1111/j.2517-6161.1994.tb01980.x
Identifiers
Journal ISSN1369-7412
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