rmEta: Remove an eta from the model

In nlmixr2est: Nonlinear Mixed Effects Models in Population PK/PD, Estimation Routines

Remove an eta from the model

Description

Remove an eta from the model

Usage

rmEta(ui, eta)

Arguments

ui	rxode2 user interface
eta	eta to remove

Value

ui model with eta removed

Author(s)

Matthew L. Fidler

Examples

mod <- function ()  {
 description <- "One compartment PK model with linear clearance"
 ini({
   lka <- 0.45
   lcl <- 1
   lvc <- 3.45
    propSd <- c(0, 0.5)
    etaKa ~ 0.1
  })
 model({
   ka <- exp(lka + etaKa)
   cl <- exp(lcl)
   vc <- exp(lvc)
   Cc <- linCmt()
   Cc ~ prop(propSd)
 })
}

mod |> rmEta("etaKa")

# This can also remove more than one eta

mod <- function ()  {
 description <- "One compartment PK model with linear clearance"
 ini({
   lka <- 0.45
   lcl <- 1
   lvc <- 3.45
   propSd <- c(0, 0.5)
   etaKa ~ 0.1
   etaCl ~ 0.2
   etaVc ~ 0.3
  })
 model({
   ka <- exp(lka + etaKa)
   cl <- exp(lcl + etaCl)
   vc <- exp(lvc + etaVc)
   Cc <- linCmt()
   Cc ~ prop(propSd)
 })
}

mod |> rmEta(c("etaKa", "etaCl"))

nlmixr2est documentation built on Aug. 5, 2026, 1:11 a.m.