Transform an mcp prior to the parameterization used by JAGS

Usage

sd_to_prec(prior_str)

Arguments

prior_str

String. A JAGS prior. Can be truncated, e.g. dt(3, 2, 1) T(my_var, ).

Value

A string

Details

This function is deprecated. JAGS uses precision rather than SD for some distributions. For example, this function converts dnorm(4.2, 1.3) into dnorm(4.2, 1/1.3^2). It allows users to specify priors using conventional scale parameters before they are translated to JAGS code. Users normally do not need to call this function.

Author

Jonas Kristoffer Lindeløv jonas@lindeloev.dk