[R] Plot multiple columns
noah at smartmediacorp.com
Tue Jun 1 18:37:23 CEST 2010
I used the term "run", as each iteration of the Gibbs sampler produces
22 variables (coefficients for Beta in a regression model)
The example wont work
On 6/1/10 5:54 AM, Ben Bolker wrote:
> Noah Silverman <noah <at> smartmediacorp.com> writes:
>> I'm running a long MCMC chain that is generating samples for 22 variables.
>> I have each run of the chain as a row in a matrix.
>> So: Chain[,1] is the column with all the samples for variable one.
>> Chain[,2] is the column with all the samples for variable 2, etc.
> The previous 2 paragraphs seemed contradictory until I realized
> that in the first paragraph you are using "run" to mean what I would
> usually call a "sample" ...
>> I'd like to fit all 22 on a single page to print a nice summary. It is
>> OK if the graphs are small, I just need to show the overall shape and
> How about for example
>> x <- matrix(runif(22000),ncol=22)
>> m <- as.mcmc(x)
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