make.leaf.paths: Make matrix of leaf paths
Description
It is helpful to know the parent nodes for each tree node. This
function creates a matrix with that information.
Usage
make.leaf.paths(up.to = 2047)
Value
Numeric matrix with "up.to" rows. If 2^j <= up.to < 2^(j+1), j columns.
Arguments
- up.to
Number of rows for which to compute leaf.paths.
Details
The ith row of the resulting matrix lists all the leaves, including i,
that would be traversed from the root to leaf i. Unneeded columns have zeros.