نتایج جستجو برای: truncated counts distribution

تعداد نتایج: 687492  

2017

Shanker [3] obtained a PoissonAkash distribution (PAD), a Poisson mixture of Akash distribution, and discussed its various statistical and mathematical properties along with estimation of parameter and applications for count data from different fields of knowledge. Shanker [4,5] has also introduced size-biased and zero-truncated version of PAD and studied their properties, estimation of paramet...

Ahad Jamalizadeh, Alireza Arabpour, Mahsa Mahmood Molaiey,

In this paper, assuming that (X, Y1, Y2)T has a trivariate normal distribution, we derive the exact joint distribution of ( X, Y(1), Y(2))^T, where Y(1) and Y(2) are order statistics arising from (Y1, Y2)T . We show that this joint distribution is a mixture of truncated trivariate normal distributions and then use this mixture representation to derive the best (nonlinear) predictiors of X...

In this paper, we consider admissible estimation of the parameter ?r in the gamma distribution with truncated parameter space under entropy loss function. We obtain the classes of admissible estimators. The result can be applied to estimation of parameters in the normal, lognormal, pareto, generalized gamma, generalized Laplace and other distributions.

2016
Ryan T. Godwin Dankmar Böhning

In population size estimation, many capture–recapture-type data exhibit a preponderance of ‘1’-counts. This excess of 1s can arise as subjects gain information from the initial capture that provides a desire and ability to avoid subsequent captures. Existing population size estimators that purport to deal with heterogeneity can be much too large in the presence of 1-inflation, which is a specif...

ژورنال: اندیشه آماری 2018
Fallah, Afshin, Rezaei, Khadiheh,

When the observations reflect a multimodal‎, ‎asymmetric or truncated construction or a combination of them‎, ‎using usual unimodal and symmetric distributions leads to misleading results‎. ‎Therefore‎, ‎distributions with ability of modeling skewness‎, ‎multimodality and truncation have been in the core of interest in statistical literature‎, ‎always‎. ‎There are different methods to contract ...

Journal: :Anadolu Üniversitesi Bilim Ve Teknoloji Dergisi - B Teorik Bilimler 2018

2009
Marcos Lima Bhuvnesh Jain Mark Devlin

We study lensing magnification of source galaxies by intervening galaxy groups and clusters using a halo model approach. Halos are modeled with truncated NFW profiles with ellipticity added to their lensing potential and propagated to observable lensing statistics. The magnification probability distribution of this model compares well with numerical results from ray-tracing simulations. We appl...

Journal: :journal of sciences islamic republic of iran 0

in this paper, we consider admissible estimation of the parameter ?r in the gamma distribution with truncated parameter space under entropy loss function. we obtain the classes of admissible estimators. the result can be applied to estimation of parameters in the normal, lognormal, pareto, generalized gamma, generalized laplace and other distributions.

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