The trunk node (with parent NA) will break SRCGrob if it is in any position except first. Some node arrangements will result in a strange looking tree, while others will actually result in an error in the internal plotting code.
This only occurs when no CP column is provided, as the nodes are reordered correctly by CP values when it is present.
The solution, for now, seems to be to add a step to prep.tree to move the trunk node to the top of the order, and change parent values accordingly.
(Submitted by @whelena)
The trunk node (with parent
NA) will breakSRCGrobif it is in any position except first. Some node arrangements will result in a strange looking tree, while others will actually result in an error in the internal plotting code.This only occurs when no
CPcolumn is provided, as the nodes are reordered correctly by CP values when it is present.The solution, for now, seems to be to add a step to
prep.treeto move the trunk node to the top of the order, and change parent values accordingly.