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      An evaluation of alternative algorithms for fitting species distribution models using logistic regression

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      Ecological Modelling
      Elsevier BV

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          Multivariate Analysis in Ecology and Systematics: Panacea or Pandora's Box?

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            How to make biological surveys go further with generalised linear models

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              Sample size tables for logistic regression.

              Sample size tables are presented for epidemiologic studies which extend the use of Whittemore's formula. The tables are easy to use for both simple and multiple logistic regressions. Monte Carlo simulations are performed which show three important results. Firstly, the sample size tables are suitable for studies with either high or low event proportions. Secondly, although the tables can be inaccurate for risk factors having double exponential distributions, they are reasonably adequate for normal distributions and exponential distributions. Finally, the power of a study varies both with the number of events and the number of individuals at risk.
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                Author and article information

                Journal
                Ecological Modelling
                Ecological Modelling
                Elsevier BV
                03043800
                April 2000
                April 2000
                : 128
                : 2-3
                : 127-147
                Article
                10.1016/S0304-3800(99)00227-6
                0f963cba-e8c3-435f-a628-3ef85301179b
                © 2000

                http://www.elsevier.com/tdm/userlicense/1.0/

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