seglist makes a seglist object from a list of integer
vectors of raw vertex ids. As a convenience if a vector of numeric ids are
passed these are assumed to specify a neuron with 1 segment.
as.seglist.neuron will extract the seglist from a neuron,
optionally extracting all subtrees (
all=TRUE) and (in this case)
flattening the list into a single hierarchy when
flatten=FALSE the result will
always be a list of
seglist objects (even if the neuron has
only one subtree i.e. is fully connected).
as.seglist.igraph will convert a fully connected acyclic
ngraph or igraph object into a seglist consisting of exactly one subtree.
seglist(...) as.seglist(x, ...) # S3 method for neuron as.seglist(x, all = FALSE, flatten = FALSE, ...) # S3 method for igraph as.seglist(x, origin = NULL, Verbose = FALSE, ...)
object passed to be converted to seglist
Whether to include segments from all subtrees
The origin of the tree (see details)
Whether to print progress updates to console (default FALSE)
list with additional class
list with one entry for each unbranched segment.
neuron for further information about seglists.
If the graph vertices have
vid attributes, typically defining
the original vertex ids of a graph that was then decomposed into subgraphs,
then the origin is assumed to refer to one of these vids not a raw vertex
id of the current graph. The returned seglist will also contain these
original vertex ids.
The head of the first segment in the seglist will be the origin.