Erabbits: Age and Eye Lens Weight of Rabbits in Australia
In ssym: Fitting Semi-Parametric log-Symmetric Regression Models
Erabbits R Documentation
Age and Eye Lens Weight of Rabbits in Australia
Description
The dry weight of the eye lens was measured for 71 free-living wild rabbits of known age. Eye lens weight tends to vary much less
with environmental conditions than does total body weight, and therefore may be a much better indicator of age.
Usage
data(Erabbits)
Format
A data frame with 71 observations on the following 2 variables.
ageage of rabbit, in days.
wlensdry weight of eye lens, in milligrams.
References
Dudzinski, M.L. and Mykytowycz, R. (1961) The eye lens as an indicator of age in the wild rabbit in Australia. CSIRO Wildlife Research, 6: 156-159.
Ratkowsky, D. A. (1983). Nonlinear Regression Modelling. Marcel Dekker, New York.
Wei, B. C. (1998). Exponential Family Nonlinear Models. Springer, Singapore.
Examples
data("Erabbits", package="ssym")
plot(Erabbits$age, Erabbits$wlens, type="p", cex=0.3, lwd=3,
ylab="Dry weight of eye lens (in milligrams)",
xlab="Age of the animal (in days)")
ssym documentation built on April 22, 2023, 1:13 a.m.
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| Erabbits | R Documentation |
Age and Eye Lens Weight of Rabbits in Australia
Description
The dry weight of the eye lens was measured for 71 free-living wild rabbits of known age. Eye lens weight tends to vary much less with environmental conditions than does total body weight, and therefore may be a much better indicator of age.
Usage
data(Erabbits)Format
A data frame with 71 observations on the following 2 variables.
ageage of rabbit, in days.
wlensdry weight of eye lens, in milligrams.
References
Dudzinski, M.L. and Mykytowycz, R. (1961) The eye lens as an indicator of age in the wild rabbit in Australia. CSIRO Wildlife Research, 6: 156-159.
Ratkowsky, D. A. (1983). Nonlinear Regression Modelling. Marcel Dekker, New York.
Wei, B. C. (1998). Exponential Family Nonlinear Models. Springer, Singapore.
Examples
data("Erabbits", package="ssym")
plot(Erabbits$age, Erabbits$wlens, type="p", cex=0.3, lwd=3,
ylab="Dry weight of eye lens (in milligrams)",
xlab="Age of the animal (in days)")
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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