Creates a multi-layer raster containing the spherical distance (in kilometers) from each PRIO-GRID cell centroid to the territorial outline of the country the cell belongs to using CShapes 2.0 boundary data for temporal time slices as defined in PRIOGRID.
Usage
gen_bdist3(cshp = read_cshapes())Arguments
- cshp
An
sfobject containing CShapes 2.0 boundary data with temporal information. Defaults toread_cshapes()if not provided.
Details
The function automatically uses past results from previous time slices to reduce computation time when country boundaries remain unchanged between consecutive periods.
Note
This function is computationally intensive and may take hours to complete
Progress indicators are printed during processing (time slice numbers)
The optimization using past results significantly reduces total computation time
Consider running in segments for very long time series to manage memory usage
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 border distance dataset
# Warning: This may take several hours to complete
temporal_bdist3 <- gen_bdist3()
print(temporal_bdist3)
} # }