/usr/lib/R/site-library/deldir/INDEX is in r-cran-deldir 0.1-9-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 | deldir Delaunay triangulation and Dirichlet
tessellation
duplicatedxy Determine duplicated points.
plot.deldir Plot objects produced by deldir
plot.tile.list Plot Dirchlet (Voronoi) tiles
plot.triang.list Plot Delaunay triangles
tile.centroids Compute centroids of Dirchlet (Voronoi) tiles
tile.list Create a list of tiles in a tessellation
tilePerim Calculate tile perimeters.
triMat Produce matrix of triangle vertex indices.
triang.list Create a list of Delaunay triangles
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