Certara.RDarwin (version 1.1.1)

Sigmas: Create an instance of Sigmas class.

Description

This function creates a new instance of different error models object to be applied. 0s are treated as no values.

Usage

Sigmas(
  Additive = 0,
  LogAdditive = 0,
  Proportional = 0.1,
  AdditiveMultiplicative = list(PropPart = 0, AddPart = 0),
  MixRatio = list(PropPart = 0, AddPart = 0),
  Power = list(PowerPart = 0, StdevPart = 0),
  ObservationName = ""
)

Value

A Sigmas class instance.

Arguments

Additive

The additive error sigma value.

LogAdditive

The log-additive error sigma value.

Proportional

The proportional error sigma value.

AdditiveMultiplicative

A list specifying the additive and multiplicative parts for the additive-multiplicative error model. The list should have elements PropPart and AddPart. Alternatively the proportional part (PropPart) could be presented as StParm, see StParm().

MixRatio

A list specifying the proportional and additive parts for the mix-ratio error model. The list should have elements PropPart and AddPart. Alternatively the proportional part (PropPart) could be presented as StParm, see StParm().

Power

A numeric vector specifying the standard deviation and power parts for the power error model. The vector should have names StdevPart and PowerPart.

ObservationName

A character string giving the name of the Observation.

See Also

Functions used for Observation specification: Observation(), ObservationCustom(), create_ModelPD(), create_ModelPK(), modify_Observation(), remove_Observation()

Examples

RSE_CObs <-
  Observation(SigmasChosen =
    Sigmas(MixRatio = list(PropPart = 2,
                           AddPart = 0.01),
           Proportional = 0))
models <-
  create_ModelPK(CompartmentsNumber = 2,
                 CObs = RSE_CObs)
print(models)