evalDerivGrid: evalDerivGrid

In pplane: Phase plane plots of 2D nonlinear systems

Description

evaluating derivative function at grid

Usage

evalDerivGrid(fDeriv, xlims, ylims, resol = 11, isJitter = FALSE, 


    ..., useSnowfall = FALSE)

Arguments

fDeriv	derivative function function(x,y,...)
xlims	numeric vector (2): range of the x values
ylims	numeric vector (2): range of the y values
resol	scalar integer: number of points in x and y range
isJitter	set to TRUE to jitter vector starting positions to avoid overplotting (however calculating contours does not work then anymore)
...	further arguments to fun, such as parms
useSnowfall	set to TRUE to use parallel execution using snowfall

Value

list with entries

z	numeric matrix vector (resol x resol,2): calculated flow at each of the grid (labels before before jittering)
xy	numeric matrix (resol,resol,2): x and y values of the grid

Author(s)

Thomas Wutzler

pplane documentation built on May 2, 2019, 6:07 p.m.