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lefko3 (version 6.4.0)

Historical and Ahistorical Population Projection Matrix Analysis

Description

Complete analytical environment for the construction and analysis of matrix population models and integral projection models. Includes the ability to construct historical matrices, which are 2d matrices comprising 3 consecutive times of demographic information. Estimates both raw and function-based forms of historical and standard ahistorical matrices. It also estimates function-based age-by-stage matrices and raw and function-based Leslie matrices.

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Version

Install

install.packages('lefko3')

Monthly Downloads

565

Version

6.4.0

License

GPL (>= 2)

Maintainer

Richard P. Shefferson

Last Published

March 13th, 2025

Functions in lefko3 (6.4.0)

aflefko2

Create Function-based Ahistorical Age x Stage Matrix Projection Model
beverton3

Two-Parameter Beverton-Holt Function
anthyllis

Matrix Set of Anthyllis vulneraria Populations in Belgium
cond_diff

Extract Conditional Ahistorical Difference Matrices
add_stage

Add a New Stage to an Existing LefkoMat Object
arlefko2

Create Raw Ahistorical Age x Stage Matrix Projection Model
cond_hmpm

Extract Conditional Ahistorical Matrices from Historical MPM
actualstage3

Calculate Actual Stage, Age, Stage-Pair, or Age-Stage Distributions
append_lP

Append Projections Into New lefkoProj Object
add_lM

Add Matrices to lefkoMat Object
edit_lM

Edit an MPM based on Supplemental Data
create_pm

Creates a Skeleton Paramnames Object for Use in Function-based Modeling
cypdata

Demographic Dataset of Cypripedium candidum Population, in Horizontal Format
density_input

Set Density Dependence Relationships in Matrix Elements
density_vr

Set Density Dependence Relationships in Vital Rates
diff_lM

Calculate Difference Matrices Between lefkoMat Objects of Equal Dimensions
cycle_check

Check Continuity of Life Cycle through Matrices in lefkoMat Objects
delete_lM

Delete Matrices from lefkoMat Object
create_lM

Create lefkoMat Object from Given Input Matrices or an MPM Database
cypvert

Demographic Dataset of Cypripedium candidum Population, in Vertical Format