This functions keeps only the indicated nodes, returning a new sub-tree.
Usage
carve_subtree(obj, char_arr)
Arguments
- obj
An object of class TreeHarp.
- char_arr
A vector of 1's and 0's indicating which nodes to keep. The
vector should have length equal to the number of nodes in obj.
Value
An object of class TreeHarp.
Details
This returns an error if the sub-tree does not define a new tree.
Examples
th3 <- list(a= c(2L,3L,4L), b=NULL, c=c(5L, 6L), d=7L, e=NULL, f=NULL, g=NULL)
carve_subtree(TreeHarp(th3), c(1,0,0,0,0,0,0))
#> a
st <- subtree_at(TreeHarp(th3), 4)
plot(st)
