Provides a convenient way of defining parameters in the format
required by run_mcmc()
. Each parameter must have the following three
elements, defined in order:
name
- the parameter name.
min
- the minimum value of the parameter. -Inf
is
allowed.
max
- the maximum value of the parameter. Inf
is
allowed.
There following arguments are also optional:
init
- the initial value of the parameter. If running
multiple chains a vector of initial values can be used to specify distinct
values for each chain.
block
- which likelihood block(s) this parameter belongs to.
See vignettes for instructions on using likelihood blocks.
define_params(...)
a series of named input arguments.
define_params(name = "mu", min = -10, max = 10, init = 0,
name = "sigma", min = 0, max = 5, init = c(1, 2))
#> name min max init
#> 1 mu -10 10 0
#> 2 sigma 0 5 1, 2
define_params(name = "mu1", min = -10, max = 10, init = 0, block = 1,
name = "mu2", min = -10, max = 10, init = 0, block = 2,
name = "sigma", min = 0, max = 5, init = 1, block = c(1, 2))
#> name min max init block
#> 1 mu1 -10 10 0 1
#> 2 mu2 -10 10 0 2
#> 3 sigma 0 5 1 1, 2