Create Spatial Delaunay

createSpatialDelaunayNetwork()

Create a spatial Delaunay network based on cell centroid physical distances.

createSpatialDelaunayNetwork(
    gobject,
    method = c("deldir", "delaunayn_geometry", "RTriangle"),
    dimensions = "all",
    name = "Delaunay_network",
    maximum_distance = "auto",
    minimum_k = 0,
    options = "Pp",
    Y = TRUE,
    j = TRUE,
    S = 0,
    verbose = T,
    return_gobject = TRUE,
    ...
)

Arguments

gobject	giotto object
method	package to use to create a Delaunay network
dimensions	which spatial dimensions to use. Use “sdimx” (spatial dimension x), “sdimy”, “sdimz” respectively to refer to X (or the 1st), Y (or the 2nd) and Z(or the 3rd) dimension, see details. (default = all)
name	name for spatial network (default = ‘delaunay_network’)
maximum_distance	distance cuttof for Delaunay neighbors to consider. If “auto”, “upper wisker” value of the distance vector between neighbors is used; see the boxplotgraphics documentation for more details.(default = “auto”)
minimum_k	minimum number of neigbhours if maximum_distance != NULL
options	(geometry) String containing extra control options for the underlying Qhull command; see the Qhull documentation (../doc/qhull/html/qdelaun.html) for the available options. (default = ‘Pp’, do not report precision problems)
Y	(RTriangle) If TRUE prohibits the insertion of Steiner points on the mesh boundary.
j	(RTriangle) If TRUE jettisons vertices that are not part of the final triangulation from the output.
S	(RTriangle) Specifies the maximum number of added Steiner points.
verbose	verbose
return_gobject	boolean: return giotto object (default = TRUE)
…	Other additional parameters

Value

A Giotto object with updated spatial network slot.

Details

Creates a spatial Delaunay network as explained in delaunayn (default), deldir, or triangulate.