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Variables

Source: R/variables.R
variables.Rd

The term variables is overloaded.

Terminology

In ramp.xds, there are several kinds of variables and terms:

  • the independent variable is usually time, but it is sometimes age

  • the dependent variables or state variables describe the state of the system - most dependent variables are computed as part of a Core Dynamical Components

    - **other state variables** are not can be set up and computed along with state variables (see [Other_State_Variables])

  • accessory variables are computed for other reasons. For example, accessory variables are used in delay differential equations to internalize computation of lagged terms using lagderiv (see Delay Equations)