keep_branches: Keep only branches specified by node numbers
In autoharp: Semi-Automatic Grading of R and Rmd Scripts

Description Usage Arguments Value Examples

Retains only specific branches, that are identified by their node numbers.

1	keep_branches(th, branch_nodes, include_lower = TRUE)

`th`	A TreeHarp object.
`branch_nodes`	An integer vector, specifying the nodes to keep.
`include_lower`	A logical value - whether or not the lower branches should also be kept.

A TreeHarp object.

ex1 <- quote(x <- f(y, g(5)))
th1 <- TreeHarp(ex1, TRUE)
keep_branches(th1, 3)
keep_branches(th1, 3, include_lower = FALSE)
keep_branches(th1, c(2,3), FALSE)
keep_branches(th1, c(3, 4), FALSE)