phaseR: Phase Plane Analysis of One- And Two-Dimensional Autonomous ODE Systems

Performs a qualitative analysis of one- and two-dimensional autonomous ordinary differential equation systems, using phase plane methods. Programs are available to identify and classify equilibrium points, plot the direction field, and plot trajectories for multiple initial conditions. In the one-dimensional case, a program is also available to plot the phase portrait. Whilst in the two-dimensional case, programs are additionally available to plot nullclines and stable/unstable manifolds of saddle points. Many example systems are provided for the user. For further details can be found in Grayling (2014) <doi:10.32614/RJ-2014-023>.

Version: 2.2.1
Imports: deSolve, graphics, grDevices, utils
Suggests: knitr, rmarkdown, testthat
Published: 2022-09-02
DOI: 10.32614/CRAN.package.phaseR
Author: Michael J Grayling ORCID iD [aut, cre], Gerhard Burger ORCID iD [ctb], Tomas Capretto [ctb], Stephen P Ellner [ctb], John M Guckenheimer [ctb]
Maintainer: Michael J Grayling <michael.grayling at>
License: MIT + file LICENSE
NeedsCompilation: no
Citation: phaseR citation info
Materials: README NEWS
In views: DifferentialEquations
CRAN checks: phaseR results


Reference manual: phaseR.pdf
Vignettes: phaseR: 2.1


Package source: phaseR_2.2.1.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
macOS binaries: r-release (arm64): phaseR_2.2.1.tgz, r-oldrel (arm64): phaseR_2.2.1.tgz, r-release (x86_64): phaseR_2.2.1.tgz, r-oldrel (x86_64): phaseR_2.2.1.tgz
Old sources: phaseR archive

Reverse dependencies:

Reverse imports: epimdr2
Reverse suggests: primer


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