R: Rats

rats {DPpackage} | R Documentation

## Rats

### Description

This example is taken from section 6 of Gelfand and Smith (1990), and concerns 30 young rats whose weights were measured weekly for five weeks.

### Usage

    data(rats)

### Format

A data frame with 150 observations on the following 3 variables.

`weight`

  a numeric vector giving the weight of the rat

`day`

  a numeric vector giving the day of the weight evaluation

`rat`

  an ordered factor giving a unique identifier for the subject in the study

### Source

Gelfand, A.E. (with S. Hills, A. Racine-Poon and A.F.M. Smith) 1990. Illustration of Bayesian Inference in Normal Data Models Using Gibbs Sampling. Journal Amer. Stat. Assoc., 85, 972-985.

### References

Gelfand, A.E. (with S. Hills, A. Racine-Poon and A.F.M. Smith) 1990. Illustration of Bayesian Inference in Normal Data Models Using Gibbs Sampling. Journal Amer. Stat. Assoc., 85, 972-985.

### Examples

    data(rats)
    ## maybe str(rats) ; plot(rats) ...

[Package DPpackage version 1.1-7.4 Index]