rat: Rat data

Description Format Source References Examples


Data collected in an experiment in which rats were injected with a dose of a drug approximately proportional to body weight. At the end of the experiment, the animal's liver was weighed, and the fraction of the drug recoved in the liver was recorded. The experimenter expected the response to be independent of the predictors.


This data frame contains the following columns:


BodyWt of the rat


LiverWt measured after sacrifice


Dose, roughly proportional to body weight


dose of drug recovered after sacrifice of the animal


Dennis Cook


Weisberg, S. (2014). Applied Linear Regression, 4th edition. Hoboken NJ: Wiley.



Example output

Loading required package: car
Loading required package: carData
Loading required package: effects
Registered S3 methods overwritten by 'lme4':
  method                          from
  cooks.distance.influence.merMod car 
  influence.merMod                car 
  dfbeta.influence.merMod         car 
  dfbetas.influence.merMod        car 
lattice theme set by effectsTheme()
See ?effectsTheme for details.
  BodyWt LiverWt Dose    y
1    176     6.5 0.88 0.42
2    176     9.5 0.88 0.25
3    190     9.0 1.00 0.56
4    176     8.9 0.88 0.23
5    200     7.2 1.00 0.23
6    167     8.9 0.83 0.32

alr4 documentation built on May 2, 2019, 2:13 p.m.

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