Results 21 to 30 of about 24,139,341 (352)

The zero-truncated discrete transmuted generalized inverse Weibull distribution and its applications [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2021
In this article, a new distribution for count data analysis is introduced. Firstly, the Discrete Transmuted Generalized Inverse Weibull distribution (DTGIW) is constructed. Consequently, some useful sub-models are discussed.
Atchanut Rattanalertnusorn   +1 more
doaj   +1 more source

Zero-Dependent Bivariate Poisson Distribution with Applications

open access: yesMathematics, 2023
The bivariate Poisson model is the most widely used model for bivariate counts, and in recent years, several bivariate Poisson regression models have been developed in order to analyse two response variables that are possibly correlated. In this paper, a
Najla Qarmalah, Abdulhamid A. Alzaid
doaj   +1 more source

Improved normalization of species count data in ecology by scaling with ranked subsampling (SRS): application to microbial communities

open access: yesPeerJ, 2020
Background Analysis of species count data in ecology often requires normalization to an identical sample size. Rarefying (random subsampling without replacement), which is the current standard method for normalization, has been widely criticized for its ...
Lukas Beule, P. Karlovsky
semanticscholar   +1 more source

Comparing Bayesian Spatial Conditional Overdispersion and the Besag–York–Mollié Models: Application to Infant Mortality Rates

open access: yesMathematics, 2021
In this paper, we review overdispersed Bayesian generalized spatial conditional count data models. Their usefulness is illustrated with their application to infant mortality rates from Colombian regions and by comparing them with the widely used Besag ...
Mabel Morales-Otero   +1 more
doaj   +1 more source

Validating Driver Behavior and Attitude Measure for Older Italian Drivers and Investigating Their Link to Rare Collision Events

open access: yesFrontiers in Psychology, 2019
The present study aimed to: (a) validate the factor structures of three scales assessing driving behavior, attitudes toward traffic safety (ATTS) and self-regulation in driving, in a sample of Italian older adults, through confirmatory factor analyses ...
Giuseppina Spano   +7 more
doaj   +1 more source

New statistical process control charts for overdispersed count data based on the Bell distribution [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2023
Poisson distribution is a popular discrete model used to describe counting information, from which traditional control charts involving count data, such as the c and u charts, have been established in the literature.
LAION L. BOAVENTURA   +4 more
doaj   +1 more source

Are Composition Surveys for Mule Deer Along Roads or From Helicopters Biased? Lessons from the Field

open access: yesWildlife Society Bulletin, 2020
Monitoring sex and age ratios (i.e., population composition) is common practice in deer (Odocoileus spp.) management because these estimates are used to determine population vital rates, as well as assess effects of hunting regulations and other ...
Mary M. Conner, Jane S. McKeever
doaj   +1 more source

Counting on count data models [PDF]

open access: yesIZA World of Labor, 2015
Often, economic policies are directed toward outcomes that are measured as counts. Examples of economic variables that use a basic counting scale are number of children as an indicator of fertility, number of doctor visits as an indicator of health care demand, and number of days absent from work as an indicator of employee shirking.
openaire   +3 more sources

Differential expression analysis for sequence count data

open access: yesGenome Biology, 2010
High-throughput sequencing assays such as RNA-Seq, ChIP-Seq or barcode counting provide quantitative readouts in the form of count data. To infer differential signal in such data correctly and with good statistical power, estimation of data variability ...
Simon Anders, Wolfgang Huber
semanticscholar   +1 more source

glmGamPoi: fitting Gamma-Poisson generalized linear models on single cell count data

open access: yesbioRxiv, 2020
Motivation The Gamma-Poisson distribution is a theoretically and empirically motivated model for the sampling variability of single cell RNA-sequencing counts (Grün et al., 2014; Townes et al., 2019; Svensson, 2020; Silverman et al., 2018; Hafemeister ...
Constantin Ahlmann-Eltze, W. Huber
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy