ex1220: Galapagos Islands
In Sleuth3: Data Sets from Ramsey and Schafer's "Statistical Sleuth (3rd Ed)"
ex1220 R Documentation
Galapagos Islands
Description
The number of species on an island is known to be related to the
island's area. Of interest is what other variables are also related
to the number of species, after island area is accounted for, and
whether the answer differs for native and non native species.
Usage
ex1220
Format
A data frame with 30 observations on the following 8 variables.
- Island
a character vector indicating the island
- Total
total number of observed species
- Native
number of native species
- Area
area (km^2)
- Elev
elevation (m)
- DistNear
distance from nearest island (km)
- DistSc
distance from Santa Cruz (km)
- AreaNear
area of nearest island (km^2)
Source
Ramsey, F.L. and Schafer, D.W. (2013). The Statistical Sleuth: A
Course in Methods of Data Analysis (3rd ed), Cengage Learning.
References
Johnson, M.P. and Raven, P.H. (1973). Species Number and Endemism: The
Galapagos Archipelago Revisited, Science 179(4076):
893–895.
Examples
str(ex1220)
Sleuth3 documentation built on May 29, 2024, 2:56 a.m.
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| ex1220 | R Documentation |
Galapagos Islands
Description
The number of species on an island is known to be related to the island's area. Of interest is what other variables are also related to the number of species, after island area is accounted for, and whether the answer differs for native and non native species.
Usage
ex1220Format
A data frame with 30 observations on the following 8 variables.
- Island
a character vector indicating the island
- Total
total number of observed species
- Native
number of native species
- Area
area (km
^2)- Elev
elevation (m)
- DistNear
distance from nearest island (km)
- DistSc
distance from Santa Cruz (km)
- AreaNear
area of nearest island (km
^2)
Source
Ramsey, F.L. and Schafer, D.W. (2013). The Statistical Sleuth: A Course in Methods of Data Analysis (3rd ed), Cengage Learning.
References
Johnson, M.P. and Raven, P.H. (1973). Species Number and Endemism: The Galapagos Archipelago Revisited, Science 179(4076): 893–895.
Examples
str(ex1220)
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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