Directly sample from a model — monty_model_direct

Directly sample from a model. Not all models support this, and an error will be thrown if it is not possible.

Usage

monty_model_direct_sample(model, rng, named = FALSE)

Arguments

model: A monty_model object
rng: Random number state, created by monty_rng_create. Use of an RNG with more than one stream may or may not work as expected; this is something we need to tidy up (mrc-5292)
named: Logical, indicating if the output should be named using the parameter names.

Value

A vector or matrix of sampled parameters

Examples

m <- monty_example("banana")

r <- monty_rng_create()
monty_model_direct_sample(m, r)
#> [1] 0.2045067 0.2863123
monty_model_direct_sample(m, r, named = TRUE)
#>     alpha      beta 
#> 1.7613960 0.1409638 

r <- monty_rng_create(n_streams = 3)
monty_model_direct_sample(m, r)
#>           [,1]        [,2]       [,3]
#> alpha 4.119168 -0.01824816 -0.7010775
#> beta  2.157869  0.95892593  0.3348243
monty_model_direct_sample(m, r, named = TRUE)
#>           [,1]      [,2]       [,3]
#> alpha 2.676928 0.1371878  0.4383688
#> beta  1.329980 0.3987461 -0.2044148