line {boa} | R Documentation |

## BUGS Line Example

### Description

The Line example involves a linear regression analysis of the data points (1,1), (2,3), (3,3), (4,3), and (5,5). The proposed Bayesian model is

`y[i] ~ N(mu[i], tau)`

`mu[i] = alpha + beta * (x[i] - mean(x[]))`

with the following priors:

`alpha ~ N(0, 0.0001)`

`beta ~ N(0, 0.0001)`

`tau ~ Gamma(0.001, 0.001)`

Two parallel chains from the MCMC sampler were generated and the output saved in the S data frames line1 and line2.

### Usage

`data(line)`

### Format

The data frames line1 and line2 each containing 200 observations.

### References

Spiegelhalter, D., Thomas, A. and Best, N., (2000). WinBugs Version 1.4 User Manual.

[Package

*boa*version 1.1.8-2 Index]