Warning: Undefined array key "mm" in /www/wwwroot/www.ai-bt.com/si.php on line 10 Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /www/wwwroot/www.ai-bt.com/si.php on line 10 A score test for zero inflation in a Poisson distribution.

Literature DB >> 7662855

A score test for zero inflation in a Poisson distribution.

Abstract

When analyzing Poisson-count data sometimes a lot of zeros are observed. When there are too many zeros a zero-inflated Poisson distribution can be used. A score test is presented to test whether the number of zeros is too large for a Poisson distribution to fit the data well.

Mesh：

Year: 1995 PMID： 7662855

Source DB: PubMed Journal: Biometrics ISSN： 0006-341X Impact factor: 2.571

Keyword Cloud
Cited

32 in total

1. A new long-term survival model with dispersion induced by discrete frailty.

Authors: Vicente G Cancho; Márcia A C Macera; Adriano K Suzuki; Francisco Louzada; Katherine E C Zavaleta
Journal: Lifetime Data Anal Date: 2019-04-09 Impact factor: 1.588

2. New variable selection methods for zero-inflated count data with applications to the substance abuse field.

Authors: Anne Buu; Norman J Johnson; Runze Li; Xianming Tan
Journal: Stat Med Date: 2011-05-12 Impact factor: 2.373

3. A hierarchical finite mixture model that accommodates zero-inflated counts, non-independence, and heterogeneity.

Authors: Charity J Morgan; Mark F Lenzenweger; Donald B Rubin; Deborah L Levy
Journal: Stat Med Date: 2014-01-20 Impact factor: 2.373

4. Catch Me if You Can: Acute Events Hidden in Structured Chronic Disease Diagnosis Descriptions Show Detectable Recording Patterns in EHR.

Authors: Franck Diaz-Garelli; Kristin M Lenoir; Brian J Wells
Journal: AMIA Annu Symp Proc Date: 2021-01-25

A score test for zero inflation in a Poisson distribution.

1. A new long-term survival model with dispersion induced by discrete frailty.

2. New variable selection methods for zero-inflated count data with applications to the substance abuse field.

3. A hierarchical finite mixture model that accommodates zero-inflated counts, non-independence, and heterogeneity.

4. Catch Me if You Can: Acute Events Hidden in Structured Chronic Disease Diagnosis Descriptions Show Detectable Recording Patterns in EHR.

5. On the efficiency of score tests for homogeneity in two-component parametric models for discrete data.

6. On performance of parametric and distribution-free models for zero-inflated and over-dispersed count responses.

7. A score-type test for heterogeneity in zero-inflated models in a stratified population.

8. A quasi-score statistic for homogeneity testing against covariate-varying heterogeneity.

9. Variance components genetic association test for zero-inflated count outcomes.

10. A Goodness-of-fit Test for Zero-Inflated Poisson Mixed Effects Models in Tree Abundance Studies.