Create network-style visualizations of pairwise relationships
    using custom edge glyphs built on top of 'ggplot2'. The package
    supports both statistical and non-statistical data and allows users to
    represent directed relationships. This enables clear,
    publication-ready graphics for exploring and communicating relational
    structures in a wide range of domains. The method was first used in
    Abu-Akel et al. (2021) <doi:10.1371/journal.pone.0245100>. Code is
    released under the MIT License; included datasets are licensed under
    the Creative Commons Attribution 4.0 International (CC BY 4.0).

Provides functions for defining 
    mixed graphs containing three types of edges, directed, 
    undirected and bi-directed, with possibly multiple edges.
    These graphs are useful because they capture fundamental
    independence structures in multivariate distributions
    and in the induced distributions after marginalization 
    and conditioning.
    The package is especially concerned with Gaussian graphical
    models for
    (i) ML estimation for directed acyclic graphs, undirected and 
    bi-directed graphs and ancestral graph models
    (ii) testing several conditional independencies
    (iii) checking global identification of DAG Gaussian models
    with one latent variable
    (iv) testing Markov equivalences and generating Markov 
    equivalent graphs of specific types.

A collection of functions to visualize spatial data and models
    on top of static maps from various online sources (e.g Google Maps and Stamen
    Maps). It includes tools common to those tasks, including functions for
    geolocation and routing.

A 'ggplot2' extension centered on map visualization of China
    and the globe. Provides customizable projections, boundary styles,
    coordinate grids, scale bars, and buffer zones for thematic maps,
    suitable for spatial data analysis and cartographic visualization.

Helper to add insets based on geom_sf() from 'ggplot2'.
    This package gives you a drop-in replacement for geom_sf() that supports
    adding a zoomed inset map without having to create and embed a separate plot.