Skip to main content
Log in

A generalization of the half-normal distribution

  • Published:
Applied Mathematics-A Journal of Chinese Universities Aims and scope Submit manuscript

Abstract

In this paper we introduce an extension of the half-normal distribution in order to model a great variety of non-negative data. Its hazard rate function can be decreasing or increasing, depending on its parameters. Some properties of this new distribution are presented. For example, we give a general expression for the moments and a stochastic representation. Also, the cumulative distribution function, the hazard rate function, the survival function and the quantile function can be easily evaluated. Maximum likelihood estimators can be computed by using numerical procedures. Finally, a real-life dataset has been presented to illustrate its applicability.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. H Akaike. A new look at the statistical model identification, IEEE Trans Automat Control, 1974, 19(6): 716–723.

    Article  MathSciNet  MATH  Google Scholar 

  2. D F Andrews, A M Herzberg. Data: A Collection of Problems from Many Fields for the Student and Research Worker, Springer Series in Statistics, New York, 1985.

    Book  MATH  Google Scholar 

  3. R E Barlow, R H Toland, T Freeman. A Bayesian analysis of stress-rupture life of kevlar 49/epoxy spherical pressure vessels, In: Proc Canad Conf Appl Statist, Marcel Dekker, New York, 1984.

    Google Scholar 

  4. H Bozdogan. Model selection and Akaike’s Information Criterion (AIC): The general theory and its analytical extensions, Psychometrika, 1987, 52: 345–370.

    Article  MathSciNet  MATH  Google Scholar 

  5. C Y Chou, H R Liu. Properties of the half-normal distribution and its application to quality control, J Ind Technol, 1998, 14(3): 4–7.

    Google Scholar 

  6. K Cooray, M M A Ananda. A generalization of the half-normal distribution with applications to lifetime data, Comm Statist Theory Methods, 2008, 37: 1323–1337.

    Article  MathSciNet  MATH  Google Scholar 

  7. G M Cordeiro, R R Pescim, E M M Ortega. The Kumaraswamy generalized half-normal distribution for skewed positive data, J Data Sci, 2012, 10: 195–224.

    MathSciNet  Google Scholar 

  8. W Gander, W Gautschi. Adaptive Quadrature — Revisited, BIT, 2000, 40: 84–101.

    Article  MathSciNet  MATH  Google Scholar 

  9. D P Murthy, M Xie, R Jiang. Weibull Models, Wiley Series in Probability and Statistics, Vol 505, John Wiley & Sons, 2004.

    Google Scholar 

  10. S Nadarajah, F Haghighi. An extension of the exponential distribution, Statistics, 2011, 45(6): 543–558.

    Article  MathSciNet  MATH  Google Scholar 

  11. M A Khan, H M Islam. Bayesian analysis of system availability with half-normal life time, Qual Technol Quant Manag, 2012, 9(2): 203–209.

    Article  Google Scholar 

  12. N M Olmos, H Varela, H W Gómez, H Bolfarine. An extension of the half-normal distribution, Statist Papers, 2012, 53: 875–886.

    Article  MathSciNet  MATH  Google Scholar 

  13. A Pewsey. Large-sample inference for the general half-normal distribution, Comm Statist Theory Methods, 2002, 31: 1045–1054.

    Article  MathSciNet  MATH  Google Scholar 

  14. A Pewsey. Improved likelihood based inference for the general half-normal distribution, Comm Statist Theory Methods, 2004, 33(2): 197–204.

    Article  MathSciNet  MATH  Google Scholar 

  15. G Schwarz. Estimating the dimension of a model, Ann Statist, 1978, 6: 461–464.

    Article  MathSciNet  MATH  Google Scholar 

  16. M P Wiper, F J Girón, A Pewsey. Objective Bayesian inference for the half-normal and half-t distributions, Comm Statist Theory Methods, 2008, 37: 3165–3185.

    Article  MathSciNet  MATH  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Yolanda M. Gómez.

Additional information

The first author was supported by Becas-Chile of the Chilean government and the second author was supported by Grant FONDECYT 1130375.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Gómez, Y.M., Vidal, I. A generalization of the half-normal distribution. Appl. Math. J. Chin. Univ. 31, 409–424 (2016). https://doi.org/10.1007/s11766-016-3366-3

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11766-016-3366-3

Keywords

MR Subject Classification

Navigation