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The flexmix Package - NexTag Supports Open Source Initiatives

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44 whiskey<br />

Format<br />

A data frame with 426 observations on the following 2 variables.<br />

Dead A logical vector.<br />

Dose A numeric vector.<br />

Details<br />

<strong>The</strong> experimental technique involved inspection under the microscope of a representative aliquot of<br />

a suspension, all organisms appearing within two fields of view being classified either alive or dead.<br />

Hence the total numbers of organisms present at each dose and the number showing the quantal<br />

response were both random variables.<br />

<strong>Source</strong><br />

R. Ashford and P.J. Walker (1972): Quantal Response Analysis for a Mixture of Populations. Biometrics<br />

28, pages 981-988.<br />

References<br />

D.A. Follmann and D. Lambert (1989): Generalizing Logistic Regression by Nonparametric Mixing.<br />

Journal of the American Statistical Association 84(405), pages 195-300.<br />

Examples<br />

data("trypanosome")<br />

trypMix

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