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Wrapped Generalized Gompertz distribution: an Application to Ornithology | OMICS International | Abstract
ISSN: 2155-6180

Journal of Biometrics & Biostatistics
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Review Article

Wrapped Generalized Gompertz distribution: an Application to Ornithology

Shongkour Roy1* and Mian Arif Shams Adnan2

1Center for Nutrition and Food Security (CNFS), International Center for Diahorreal Diseases Research (ICDDRB), Mohakhali, Dhaka, Bangladesh

2Department of Statistics, Jahangirnagar University, Dhaka, Bangladesh

*Corresponding Author:
Shongkour Roy
Center for Nutrition and Food Security (CNFS)
International Center for Diahorreal Diseases Research (ICDDRB)
Mohakhali, Dhaka-1212, Bangladesh
E-mail: [email protected]

Received date: August 30, 2012; Accepted date: October 29, 2012; Published date: November 03, 2012

Citation: Roy S, Shams Adnan MA (2012) Wrapped Generalized Gompertz distribution: an Application to Ornithology. J Biom Biostat 3:153.. doi: 10.4172/2155-6180.1000153

Copyright: © 2012 Roy S, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


In many scientific fields such as biology (orientation of birds), geology (orientations of feldspar laths) and meteorology (wind direction and ozone concentration), data occur as angular forms. In this paper, a class of wrapped distribution called wrapped generalized Gompertz distributions are introduced (WGG). Characteristic function and fundamental properties of this distribution are described. Some theorems that relate the distribution to some other circular distributions are established. Applications to density estimation and goodness-of-fit tests are used to analyze data on the heading of orientation of the nest of noisy scrub birds, and it is shown that the model fits much better than some other existing circular symmetric and non-symmetric models.


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