Browsing Journal Articles by Author "Mahesh, K. C."

Now showing items 1-5 of 5

    • Robustness of tests for directional mean 

      Laha, Arnab Kumar; Mahesh, K. C. (Taylor & Francis, 2015)
      In this paper we study the robustness of the likelihood ratio, circular mean and circular trimmed mean test functionals in the context of tests of hypotheses regarding the mean direction of circular normal and wrapped ...

    • SB-robust estimation of mean direction for some new circular distributions 

      Laha, Arnab Kumar; Raja, A. C. Pravida; Mahesh, K. C. (Springer, 2016)
      The most often used distribution for modelling directional data has been the circular normal (CN) (a.k.a. von-Mises) distribution. Recently Kato and Jones (K–J) introduced a family of distribution which includes the CN ...

    • SB-robust estimator for the concentration parameter of the circular normal distribution 

      Laha, Arnab Kumar; Mahesh, K. C. (Statistical Papers, 2012)
      In this paper we discuss robust estimation of the concentration parameter ( κ) of the circular normal (CN) distribution. It is known that the MLE of the concentration parameter is not B-robust at the family of all circular ...

    • SB-robust estimators of the parameters of the wrapped normal distribution 

      Laha, Arnab Kumar; Mahesh, K. C.; Ghosh, D. K. (Communications in Statistics: Theory & Methods, 2013)
      In this article, we study the SB-robustness of various estimators of the mean direction (μ) and the concentration parameter (ρ) of the wrapped normal distribution. The functional corresponding to the sample mean direction ...

    • SB-robustness of directional mean for circular distributions 

      Laha, Arnab Kumar; Mahesh, K. C. (2011-09-07)
      In this paper we study the robustness of the directional mean (a.k.a. circular mean) for different families of circular distributions. We show that the directional mean is robust in the sense of finite standardized gross ...