JumpSystem

struct JumpSystem{U<:ArrayPartition} <: AbstractTimeDependentSystem

A system of jump processes.

Fields

• eqs

  The jumps of the system. Allowable types are ConstantRateJump, VariableRateJump, MassActionJump.

• iv

  The independent variable, usually time.

• states

  The dependent variables, representing the state of the system. Must not contain the independent variable.

• ps

  The parameters of the system. Must not contain the independent variable.

• var_to_name

  Array variables.

• observed

• name

  The name of the system. . These are required to have unique names.

• systems

  The internal systems.

• defaults

  defaults: The default values to use when initial conditions and/or parameters are not supplied in ODEProblem.

• connector_type

  type: type of the system

Example

using ModelingToolkit

@parameters β γ
@variables t S(t) I(t) R(t)
rate₁   = β*S*I
affect₁ = [S ~ S - 1, I ~ I + 1]
rate₂   = γ*I
affect₂ = [I ~ I - 1, R ~ R + 1]
j₁      = ConstantRateJump(rate₁,affect₁)
j₂      = ConstantRateJump(rate₂,affect₂)
j₃      = MassActionJump(2*β+γ, [R => 1], [S => 1, R => -1])
@named js      = JumpSystem([j₁,j₂,j₃], t, [S,I,R], [β,γ])