A Fast and Robust Way to Estimate Overlap of Niches, and Draw Inference.
Int J Biostat
; 14(2)2018 06 15.
Article
em En
| MEDLINE
| ID: mdl-29906269
ABSTRACT
The problem of quantifying the overlap of Hutchinsonian niches has received much attention lately, in particular in quantitative ecology, from where it also originates. However, the niche concept has the potential to also be useful in many other application areas, as for example in economics. We are presenting a fully nonparametric, robust solution to this problem, along with exact shortcut formulas based on rank-statistics, and with a rather intuitive probabilistic interpretation. Furthermore, by deriving the asymptotic sampling distribution of the estimators, we are proposing the first asymptotically valid inference method, providing confidence intervals for the niche overlap. The theoretical considerations are supplemented by simulation studies and a real data example.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Bioestatística
/
Interpretação Estatística de Dados
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Modelos Estatísticos
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Ecossistema
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Modelos Biológicos
Tipo de estudo:
Risk_factors_studies
Limite:
Animals
Idioma:
En
Revista:
Int J Biostat
Ano de publicação:
2018
Tipo de documento:
Article