draws_list: The 'draws_list' format

In posterior: Tools for Working with Posterior Distributions

The draws_list format

Description

The as_draws_list() methods convert objects to the draws_list format. The draws_list() function creates an object of the draws_list format based on a set of numeric vectors. See Details.

Usage

as_draws_list(x, ...)

## Default S3 method:
as_draws_list(x, ...)

## S3 method for class 'draws_list'
as_draws_list(x, ...)

## S3 method for class 'draws_matrix'
as_draws_list(x, ...)

## S3 method for class 'draws_array'
as_draws_list(x, ...)

## S3 method for class 'draws_df'
as_draws_list(x, ...)

## S3 method for class 'draws_rvars'
as_draws_list(x, ...)

## S3 method for class 'mcmc'
as_draws_list(x, ...)

## S3 method for class 'mcmc.list'
as_draws_list(x, ...)

draws_list(..., .nchains = 1)

is_draws_list(x)

Arguments

x	An object to convert to a draws_list object.
...	For as_draws_list(): Arguments passed to individual methods (if applicable). For draws_list(): Named arguments containing numeric vectors each defining a separate variable.
.nchains	(positive integer) The number of chains. The default is 1.

Details

Objects of class "draws_list" are lists with one element per MCMC chain. Each of these elements is itself a named list of numeric vectors with one vector per variable. The length of each vector is equal to the number of saved iterations per chain. See Examples.

Value

A draws_list object, which has classes c("draws_list", "draws", "list").

See Also

Other formats: draws_array(), draws_df(), draws_matrix(), draws_rvars(), draws

Examples

x1 <- as_draws_list(example_draws())
class(x1)
print(x1)
str(x1)

x2 <- draws_list(a = rnorm(10), b = rnorm(10), c = 1)
class(x2)
print(x2)
str(x2)

posterior documentation built on Nov. 2, 2023, 5:56 p.m.