path.arbor(tree, nodes, pretty=0, print.it=T)
arbor
. This is assumed to be the
result of some function that produces an object with the same named
components as that returned by the
arbor
function.
NULL
, the default, signifies using elements of letters to represent
the different factor levels.
nodes
argument is supplied.
A dendrogram of the
arbor
object is expected to be visible
on the graphics device, and a graphics input device (eg a mouse)
is required. Clicking (the selection button) on a node
selects that node. This process may be repeated any
number of times. Clicking the exit button will stop the
selection process and return the list of paths.
The function has a required argument as an
arbor
object and
a list of nodes as optional arguments. Omitting a list of
nodes will cause the function to wait for the user to
select nodes from the dendogram. It will return a list,
with one component for each node specified or selected.
The component contains the sequence of splits leading to
that node. In the graphical interation, the individual
paths are printed out as nodes are selected.
This function was modified from
path.tree
.