lotkaVolterra function

The Lotka-Volterra model

The derivative function of the Lotka-Volterra model, an example of a two-dimensional autonomous ODE system.

lotkaVolterra(t, y, parameters)

Arguments

• t: The value of , the independent variable, to evaluate the derivative at. Should be a numeric vector of length one.

• y: The values of and , the dependent variables, to evaluate the derivative at. Should be a numeric

  vector of length two.

• parameters: The values of the parameters of the system. Should be a numeric vector with parameters specified in the following order: , , , .

Returns

Returns a list containing the values of the two derivatives at .

Details

lotkaVolterra evaluates the derivative of the following ODE at the point :

Its format is designed to be compatible with ode from the deSolve package.

See Also

ode

Author(s)

Michael J Grayling