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popdemo (version 1.3-2)

Demographic Modelling Using Projection Matrices

Description

Tools for modelling populations and demography using matrix projection models, with deterministic and stochastic model implementations. Includes population projection, indices of short- and long-term population size and growth, perturbation analysis, convergence to stability or stationarity, and diagnostic and manipulation tools.

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Version

Install

install.packages('popdemo')

Monthly Downloads

722

Version

1.3-2

License

GPL (>= 2)

Maintainer

Iain Stott

Last Published

April 11th, 2025

Functions in popdemo (1.3-2)

Block-permute a reducible matrix

Projection-class

'Projection' object S4 class

Read Matlab style matrices into R

Calculate maximal amplification

Calculate maximal attenuation

Determine primitivity of a matrix

Determine reducibility of a matrix

Calculate time to convergence

Calculate population inertia

Plot transfer function

Calculate damping ratio

Plot transfer function

popdemo-package

Provides tools for demographic modelling using projection matrices

popdemo-deprecated

Deprecated functions in the popdemo package

Calculate asymptotic growth

Calculate elasticity matrix

Transfer function analysis

Project population dynamics

Calculate sensitivity of inertia using transfer functions

Calculate reactivity and first-timestep attenuation

Transfer function Analysis

Transfer function analysis

Determine ergodicity of a matrix

Calculate projection distance

Calculate sensitivity matrix

Project population dynamics

Calculate sensitivity using transfer functions

Transfer function Analysis

Calculate asymptotic growth

Calculate Keyfitz's delta

Desert tortoise matrix

Projection-plots

Plot methods for 'Projection' objects

Calculate Cohen's cumulative distance

Calculate Kreiss bounds

Polar bear matrices

Convert matrices into Matlab style strings