R: Calculate df/dy derivatives

rxSymPyDfDy {RxODE} | R Documentation

## Calculate df/dy derivatives

### Description

Calculate df/dy derivatives

### Usage

    rxSymPyDfDy(model, df, dy, vars = FALSE)

### Arguments

`model` | RxODE models
`df` | is a string for the state in the df(.)/dy(.). If missing and dy is missing, all the df(.)/dy(.) components are calculated according to the `vars` parameter below.
`dy` | is a string for the state or variable in the df(.)/dy(.).
`vars` | is a boolean indicating if parameters will be included for the dy component in the df(.)/dy(.), instead of just state variables (required for sensitivity equations). vars can also be a list of variables. In this case the df(.)/dy(.) will be augmented with the variables in this list.

### Value

RxODE syntax lines for the df(.)/dy(.)

### Author(s)

Matthew L. Fidler

[Package RxODE version 0.9.1-9 Index]