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=TRUE.
n.b. when all=TRUE but 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, ...)for seglist integer vectors to convert to a seglist
object passed to be converted to seglist
Whether to include segments from all subtrees
When all=TRUE flatten the lists of lists into a
one-level list.
The origin of the tree (see details)
Whether to print progress updates to console (default FALSE)
A list with additional class seglist.
a list with one entry for each unbranched segment.
see 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.