jenks71: Illinois 1959 county gross farm product value per acre
In spData: Datasets for Spatial Analysis
jenks71 R Documentation
Illinois 1959 county gross farm product value per acre
Description
Classic data set for the choice of class intervals for choropleth maps.
Usage
jenks71
Format
A data frame with 102 observations on the following 2 variables.
jenks71: a numeric vector: Per acre value of gross farm products in dollars by county for Illinois in #' 1959
area: a numeric vector: county area in square miles
Source
Jenks, G. F., Caspall, F. C., 1971. "Error on choroplethic maps: definition, measurement, reduction". Annals, Association of American Geographers, 61 (2), 217–244
Examples
data(jenks71)
jenks71
spData documentation built on Sept. 11, 2024, 5:36 p.m.
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| jenks71 | R Documentation |
Illinois 1959 county gross farm product value per acre
Description
Classic data set for the choice of class intervals for choropleth maps.
Usage
jenks71
Format
A data frame with 102 observations on the following 2 variables.
jenks71: a numeric vector: Per acre value of gross farm products in dollars by county for Illinois in #' 1959area: a numeric vector: county area in square miles
Source
Jenks, G. F., Caspall, F. C., 1971. "Error on choroplethic maps: definition, measurement, reduction". Annals, Association of American Geographers, 61 (2), 217–244
Examples
data(jenks71)
jenks71
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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