Saddlepoint Approximations to the Distribution Function of Non-homogeneous Quadratic Forms

비동차 이차형식의 분포함수에 대한 안장점근사

  • Na Jong-Hwa (Department of Information and Statistics & Institute for Basic Sciences, Chungbuk National University) ;
  • Kim Jeong-Soak (Principal Researcher, Information and Communication Dept., Health Insurance B/D)
  • 나종화 (충북대학교 정보통계학과 & 기초과학연구소) ;
  • 김정숙 (건강보험심사평가원)
  • Published : 2005.03.01


In this paper we studied the saddlepoint approximations to the distribution of non-homogeneous quadratic forms in normal variables. The results are the extension of Kuonen's which provide the same approximations to homogeneous quadratic forms. The CGF of interested statistics and related properties are derived for applications of saddlepoint techniques. Simulation results are also provided to show the accuracy of saddlepoint approximations.


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