pc_calculator: Variable Calculator In ODE Systems
In ecode: Ordinary Differential Equation Systems in Ecology

pc_calculator

R Documentation

Variable Calculator In ODE Systems

Description

Calculate one or several variables during the simulation of an ODE system

Usage

pc_calculator(x, formula)

Arguments

`x`	the ODE system under consideration. An object of "`eode`" class.
`formula`	formula that specifies how to calculate the variable to be traced.

Value

an object of "pc" class with extra variables being attached.

Examples

eq1 <- function(x, y, r1 = 4, a11 = 1, a12 = 2) (r1 - a11 * x - a12 * y) * x
eq2 <- function(x, y, r2 = 1, a21 = 2, a22 = 1) (r2 - a21 * x - a22 * y) * y
x <- eode(dxdt = eq1, dydt = eq2, constraint = c("x<100", "y<100"))
pc <- eode_proj(x, value0 = pp(list(x = 0.2, y = 0.1)), N = 100)
pc_calculator(pc, formula = "z = x + y")

ecode documentation built on July 2, 2024, 9:06 a.m.