1 |
newtree |
|
node_id |
|
start_criteria |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | ##---- Should be DIRECTLY executable !! ----
##-- ==> Define data, use random,
##-- or do help(data=index) for the standard data sets.
## The function is currently defined as
function (newtree, node_id = 1, start_criteria = character(0))
{
if (nodes(newtree, node_id)[[1]]$terminal) {
prediction <- ptree_y(newtree, node_id)
ypred <- paste(start_criteria, ",y =", prediction, ";")
return(ypred)
}
left_node_id <- ptree_left(newtree, node_id)
right_node_id <- ptree_right(newtree, node_id)
if (is.null(left_node_id) != is.null(right_node_id)) {
print("left node ID != right node id")
}
ypred <- character(0)
if (!is.null(left_node_id)) {
new_criteria <- paste(start_criteria, ptree_criteria(newtree,
node_id, T), sep = ",")
if (1 == node_id)
new_criteria <- ptree_criteria(newtree, node_id,
T)
ypred <- list_node(newtree, left_node_id, new_criteria)
}
if (!is.null(right_node_id)) {
new_criteria <- paste(start_criteria, ptree_criteria(newtree,
node_id, F), sep = ",")
if (1 == node_id)
new_criteria <- ptree_criteria(newtree, node_id,
F)
ypred <- paste(ypred, list_node(newtree, right_node_id,
new_criteria))
}
return(ypred)
}
|
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