GitHub - jeffreyevans/GeNetIt: R package for spatial graph-theoretic gravity modelling (original) (raw)
GeNetIt (CRAN 0.1-6, development 0.1-7) 
GeNetIt is an R package for spatial graph-theoretic gravity modeling. The model framework is applicable for other types of matrix-based spatial flow (from-to) problems. Includes functions for constructing spatial graphs, sampling, summarizing associated raster variables and building unconstrained and singly constrained gravity models following Murphy et al., (2010).
As of version 0.1-6 all support of raster (RasterLayer, RasterStack) and sp (SpatialPointsDataFrame) class objects
has ended, replaced by terra (SpatRaster) and sf (sf POINT) classes.
You can access a full tutorial here
Available functions in GeNetIt 0.1-6 are:
| GeNetIt Function | Description |
|---|---|
| adj.matrix | Creates binary adjacency matrix of from-to (joins) structure of graph |
| build.node.data | Build node data |
| compare.models | Compare competing hypothesis (models) |
| dmatrix.df | Distance matrix to data.frame |
| dps | dps genetic distance matrix for Columbia spotted frog (Rana luteiventris) |
| flow | Convert distance matrix to flow (1-d) |
| graph.metrics | Calculates a suite of metrics on the structure of the graph |
| graph.statistics | Raster statistics for edges (lines) with buffer argument for multi-scale assessment |
| gravity.es | Effect size for a gravity model |
| gravity | Gravity model |
| knn.graph | K Nearest Neighbor or saturated Graph |
| node.statistics | Raster statistics for nodes (points) |
| plot.gravity | plot generic for a gravity model object |
| predict.gravity | predict generic gravity model |
| print.gravity | print generic gravity model |
| ralu.model | Columbia spotted frog (Rana luteiventris) data for specifying gravity model. Note, the data.frame is already log transformed. |
| ralu.site | Subset of site-level spatial point data for Columbia spotted frog (Rana luteiventris) |
| rasters | Subset of raster data for Columbia spotted frog (Rana luteiventris) |
| summary.gravity | summary generic for gravity model objects |
| area.graph.statistics | Depreciated, please use graph.statistics with buffer argument |
Bugs: Users are encouraged to report bugs here. Go to issues in the menu above, and press new issue to start a new bug report, documentation correction or feature request. You can direct questions to jeffrey_evans@tnc.org.
To install GeNetIt in R use install.packages() to download curent stable release from CRAN
or, for the development version, run the following (requires the remotes package): remotes::install_github("jeffreyevans/GeNetIt")