%~% {RTMB}R Documentation

Distributional assignment operator

Description

Distributional assignment operator

Usage

x %~% distr

Arguments

x

LHS; Random effect or data for which distribution assignment applies

distr

RHS; Distribution expression

Details

Provides a slightly simplified syntax inspired by, but not compatible with, other probabilistic programming languages (e.g. BUGS/JAGS):

Value

The updated value of the hidden variable .nll.

Note

If the shorter name ~ is preferred, it can be locally overloaded using "~" <- RTMB::"%~%".

Examples

f <- function(parms) {
  getAll(parms)
  x %~% dnorm(mu, 1)
  y %~% dpois(exp(x))
}
p <- list(mu=0, x=numeric(10))
y <- 1:10
obj <- MakeADFun(f, p, random="x")

[Package RTMB version 1.5 Index]