R: Uranium Exploration Dataset of Cook & Johnson (1986)

uranium {copula} | R Documentation

## Uranium Exploration Dataset of Cook & Johnson (1986)

### Description

These data consist of log concentrations of 7 chemical elements in 655 water samples collected near Grand Junction, CO (from the Montrose quad-rangle of Western Colorado). Concentrations were measured for the following elements: Uranium (U), Lithium (Li), Cobalt (Co), Potassium (K), Cesium (Cs), Scandium (Sc), And Titanium (Ti).

### Usage

    data(uranium, package="copula")

### Format

A data frame with 655 observations of the following 7 variables:

`U`

  (numeric) log concentration of Uranium.

`Li`

  (numeric) log concentration of Lithium.

`Co`

  (numeric) log concentration of Colbalt.

`K`

  (numeric) log concentration of Potassium.

`Cs`

  (numeric) log concentration of Cesium.

`Sc`

  (numeric) log concentration of Scandum.

`Ti`

  (numeric) log concentration of Titanium.

### References

Cook, R. D. and Johnson, M. E. (1986) Generalized BurrParetologistic distributions with applications to a uranium exploration data set. Technometrics 28, 123–131.

### Examples

    data(uranium)

[Package copula version 1.0-1 Index]