Main API

A type that contains the information of the LNA system.

Fields

• rn::ReactionSystem: a reaction network that is used to construct the LNA system, which is from Catalyst.jl
• odesys::ODESystem: the linear noise approximation system, it is a ODESystem that extends the ReactionSystem by adding the covariance terms
• kwargs::Any: Optional keyword arguments

Function to obtain the ODEs according to the rate equations

Arguments

• rn::ReactionSystem: a reaction network that is used to construct the LNA system, which is from Catalyst.jl
• combinatoric_ratelaws::Bool: (Optional) whether to use the combinatoric rate laws, default is false

Function to obtain the symbolic matrix of the LNA system

Arguments

• rn::ReactionSystem: a reaction network that is used to construct the LNA system, which is from Catalyst.jl
• combinatoric_ratelaws::Bool: (Optional) whether to use the combinatoric rate laws, default is false

Function to find the index of the covariance matrix in the LNA system.

Arguments

• num::Int: the index of the species in the reaction network
• lna_sys::LNASystem: the LNA system

Function to expand the initial conditions of the LNA system.

Arguments

• sys::LNASystem: the LNA system
• u0::Vector: the initial conditions of the orignal system (rate equations)