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Creates a multi-layer raster containing state system coverage proportions for all PRIO-GRID temporal slices. The function generates time series data showing how grid cell coverage by international state boundaries changes over time using CShapes 2.0 boundary data.

Usage

gen_cshapes_cover_share(cshp = read_cshapes())

Arguments

cshp

An sf object containing CShapes 2.0 boundary data. Defaults to read_cshapes() if not provided.

Value

A SpatRaster object

References

Schvitz G, Girardin L, Rüegger S, Weidmann NB, Cederman L, Gleditsch KS (2022). “Mapping the International System, 1886-2019: The CShapes 2.0 Dataset.” Journal of Conflict Resolution, 66(1), 144–161. ISSN 0022-0027, doi:10.1177/00220027211013563 , 2024-11-22.

Examples

if (FALSE) { # \dontrun{
# Generate full temporal coverage data
temporal_coverage <- gen_cshapes_cover_share()

# Examine the structure
print(temporal_coverage)
} # }