Converts the list-style-tree to a data frame, where each variety has an id value and references its' parent's id value. ID value ranges correspond to generation. It is possible that with more complex trees the range of id values may need to expand to reduce the probability of two varieties being assigned the same id value.
1 |
tlist |
list of varieties |
branch |
of particular variety in tree |
par.id |
the id of the parent |
id |
id offset |
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