shinystan (version 2.6.0)

generate_quantity: Add new quantity to shinystan object

Description

Add to shinystan object a new parameter as a function of one or two existing parameters.

Usage

generate_quantity(sso, param1, param2, fun, new_name)

Value

sso, updated. See Examples.

Arguments

sso

A shinystan object.

param1

Name of first parameter as character string.

param2

Optional. Name of second parameter as character string.

fun

Function to call, i.e. function(param1) or function(param1,param2). See Examples, below.

new_name

Name for the new parameter as character string.

See Also

drop_parameters to remove parameters from a shinystan object.

Examples

# Using example shinystan object 'eight_schools'
sso <- eight_schools
sso <- generate_quantity(sso, fun = function(x) x^2, 
                         param1 = "tau", new_name = "tau_sq")
sso <- generate_quantity(sso, fun = "-", 
                         param1 = "theta[1]", param2 = "theta[2]", 
                         new_name = "theta1minus2")