sfislands: An R Package for Accommodating Islands and Disjoint Zones in Areal Spatial Modelling
arxiv(2024)
摘要
Fitting areal models which use a spatial weights matrix to represent
relationships between geographical units can be a cumbersome task, particularly
when these units are not well-behaved. The two chief aims of sfislands are to
simplify the process of creating an appropriate neighbourhood matrix, and to
quickly visualise the predictions of subsequent models. The package uses visual
aids in the form of easily-generated maps to help this process. This paper
demonstrates how sfislands could be useful to researchers. It begins by
describing the package's functions in the context of a proposed workflow. It
then presents three worked examples showing a selection of potential use-cases.
These range from earthquakes in Indonesia, to river crossings in London, and
hierarchical models of output areas in Liverpool. We aim to show how the
sfislands package streamlines much of the human workflow involved in creating
and examining such models.
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