poisons: Survival Times for Poisoned Animals
In SMPracticals: Practicals for Use with Davison (2003) Statistical Models
poisons R Documentation
Survival Times for Poisoned Animals
Description
In an experiment to assess the usefulness of
treatments for poisons,
48 animals were split randomly into 12 groups of 4.
Each group was administered one of three poisons,
and one of four treatments, giving a
3x4 factorial design with 4 replicates.
Usage
data(poisons)
Format
A data frame with 48 observations on the following 3 variables.
- time
Survival time (units of 10 hours)
- poison
Factor giving poison
- treat
Factor giving treatment
Source
Box, G. E. P. and Cox, D. R. (1964) An analysis of transformations
(with Discussion).
Journal of the Royal Statistical Society series B, 26, 211–246.
References
Davison, A. C. (2003) Statistical Models. Cambridge University Press.
Page 391.
Examples
data(poisons)
fit <- lm(time~poison+treat,data=poisons)
library(MASS)
boxcox(time~poison+treat,data=poisons)
SMPracticals documentation built on May 29, 2024, 12:19 p.m.
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| poisons | R Documentation |
Survival Times for Poisoned Animals
Description
In an experiment to assess the usefulness of treatments for poisons, 48 animals were split randomly into 12 groups of 4. Each group was administered one of three poisons, and one of four treatments, giving a 3x4 factorial design with 4 replicates.
Usage
data(poisons)Format
A data frame with 48 observations on the following 3 variables.
- time
Survival time (units of 10 hours)
- poison
Factor giving poison
- treat
Factor giving treatment
Source
Box, G. E. P. and Cox, D. R. (1964) An analysis of transformations (with Discussion). Journal of the Royal Statistical Society series B, 26, 211–246.
References
Davison, A. C. (2003) Statistical Models. Cambridge University Press. Page 391.
Examples
data(poisons)
fit <- lm(time~poison+treat,data=poisons)
library(MASS)
boxcox(time~poison+treat,data=poisons)
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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