Gibbs sampler for linear regression code.
The default prior is an uninformative normal-gamma (large prior variances). An informative normal-gamma prior can be specified.
gsreg.jl is the gibbs sampler for linear regresion function, and produces an MCMC sample for the
mcmc_sample_plot.jl is a function to produce a time plot and density plot from an MCMC sample.
gsregExample.jl is a a simple example using the above two functions.