- the data are organized into a tree with just one branch,
corresponding to the experimental runs. Object written into this branch
(run record) contains:
- begin run record (if any)
- tree of events (event record in general goes into several branches)
- end run record (if any)
There are examples in ROOT tests/tutorials of how to deal with the simpliest
trees, consisting of one or several linear branches (branch itself is not a tree
but just a collection of leaves).
It would be quite helpful to have an example of writing out (filling) more
complex tree structure, for example the one described above.
Thanks, Pasha.