Subset mcmc Object

Subsets an mcmc object by its parameters and/or iterations.

# S3 method for class 'mcmc'
subset(x, iters = NULL, pars = NULL, iterations = NULL, parameters = NULL, ...)

Arguments

x

An mcmc object.

iters

An integer vector of iterations.

pars

A character vector of parameter names.

iterations

An integer vector (or NULL) of the iterations to subset by.

parameters

A character vector (or NULL) of the parameters to subset by.

...

Unused.

Value

An mcmc object.

Details

Future versions should allow it to be reordered by its parameters.

Examples

mcmc <- as_mcmc(nlist(beta = 1:2, theta = 1))
subset(mcmc, pars = "beta")
#> Markov Chain Monte Carlo (MCMC) output:
#> Start = 1 
#> End = 1 
#> Thinning interval = 1 
#>      beta[1] beta[2]
#> [1,]       1       2
subset(mcmc, iters = c(1L,1L))
#> Markov Chain Monte Carlo (MCMC) output:
#> Start = 
#> End = 
#> Thinning interval = 
#>      beta[1] beta[2] theta
#> [1,]       1       2     1
#> [2,]       1       2     1