ex1027: Factors Affecting Extinction
In Sleuth2: Data Sets from Ramsey and Schafer's "Statistical Sleuth (2nd Ed)"
ex1027 R Documentation
Factors Affecting Extinction
Description
Data are measurements on breeding pairs of land-bird species collected
from 16 islands around Britain over the course of several decades.
For each species, the data set contains an average time of extinction
on those islands where it appeared, the average number of nesting
pairs, the size of the species and the migratory status of the
species.
Usage
ex1027
Format
A data frame with 62 observations on the following 5 variables.
Speciesa character vector indicating the species
Timeaverage extinction time in years
Pairsaverage number of nesting pairs
Sizea factor with levels "L" and "S"
Statusa factor with levels "M" and "R"
Source
Ramsey, F.L. and Schafer, D.W. (2002). The Statistical Sleuth: A
Course in Methods of Data Analysis (2nd ed), Duxbury.
References
Pimm, S.L., Jones, H.L., and Diamond, J. (1988). On the Risk of
Extinction, American Naturalist 132(6): 757–785.
Examples
str(ex1027)
Sleuth2 documentation built on May 29, 2024, 7:37 a.m.
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| ex1027 | R Documentation |
Factors Affecting Extinction
Description
Data are measurements on breeding pairs of land-bird species collected from 16 islands around Britain over the course of several decades. For each species, the data set contains an average time of extinction on those islands where it appeared, the average number of nesting pairs, the size of the species and the migratory status of the species.
Usage
ex1027Format
A data frame with 62 observations on the following 5 variables.
Speciesa character vector indicating the species
Timeaverage extinction time in years
Pairsaverage number of nesting pairs
Sizea factor with levels
"L"and"S"Statusa factor with levels
"M"and"R"
Source
Ramsey, F.L. and Schafer, D.W. (2002). The Statistical Sleuth: A Course in Methods of Data Analysis (2nd ed), Duxbury.
References
Pimm, S.L., Jones, H.L., and Diamond, J. (1988). On the Risk of Extinction, American Naturalist 132(6): 757–785.
Examples
str(ex1027)
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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