uses various sampling strategies to create dummy nodes for the tnss_tree

tnss_dummies(
  xy,
  root,
  circ = TRUE,
  line = TRUE,
  diag = TRUE,
  grid = FALSE,
  rand = FALSE,
  ncirc = 9,
  rcirc = 2,
  nline = 10,
  ndiag = 50,
  ngrid = 50,
  nrand = 50
)

Arguments

xy

coordinates of "real" nodes

root

root node id

circ

logical. create circular dummy nodes around leafs.

line

logical. create dummy nodes on a straight line between root and leafs.

diag

logical. create dummy nodes diagonally through space.

grid

logical. create dummy nodes on a grid.

rand

logical. create random dummy nodes.

ncirc

numeric. number of circular dummy nodes per leaf.

rcirc

numeric. radius of circles around leaf nodes.

nline

numeric. number of straight line nodes per leaf.

ndiag

numeric. number of dummy nodes on diagonals.

ngrid

numeric. number of dummy nodes per dim on grid.

nrand

numeric. number of random nodes to create.

Value

coordinates of dummy nodes

Author

David Schoch

Examples

# dummy nodes for tree rooted in California xy <- cbind(state.center$x,state.center$y) xy_dummy <- tnss_dummies(xy,4)