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LoopAnalyst (version 1.1-1)

A collection of tools to conduct Levins' Loop Analysis

Description

Loop analysis makes qualitative predictions of variable change in a system of causally interdependent variabless, where "qualitative" means sign only (i.e. increases, decreases, non change, and ambiguous). This implementation includes output support for graphs in .dot file format for use with visualization software such as graphviz (graphviz.org). Loop Analyst provides tools for the construction and output of community matrices, computation and output of community effect matrices, tables of correlations, adjoint, absolute feedback, weighted feedback and weighted prediction matrices, and feedback, path and loop enumeration tools.

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Version

Install

install.packages('LoopAnalyst')

Monthly Downloads

169

Version

1.1-1

License

GPL version 2 or newer

Maintainer

Alexis Dinno

Last Published

April 8th, 2024

Functions in LoopAnalyst (1.1-1)

enumerate.loops

Enumerates all Loops in a (-1, 0, 1) Matrix
community.effect.matrix

The Community Effect Matrix of a Simulated Five-Variable Data Set
community.matrix

Simulated Five-Variable Data Set
cem.corr

Compute the Tables of Correlations for a Community Effect matrix
make.wfm

Compute the Weighted Feedback Matrix
make.cem

Compute the Community Effect Matrix
feedback

Feedback of a Partially Specified System
weighted.predictions

Compute the Matrix of Weighted Predictions
make.T

Compute the Absolute Feedback Matrix of a Community Matrix
enumerate.paths

Enumerates all Paths from i to j in a Community Matrix
submatrix

A Three-Variable Sub-Matrix of a Simulated Five-Parameter Data Set
validate.cm

Validate a Community Matrix
out.cm

Output a Community Matrix or Community Effect Matrix in Conventional Format
make.adjoint

Compute the Adjoint of the Negative Community Matrix
save.cm

Save a Community Matrix
graph.cm

Graph a Community Matrix
make.cm

Interactively Make a Community Matrix