}}}
=== Options ===
- * `-f=<first>` : first gene tree to analyze (0-based index)
- * `-l=<last>` : last gene tree to analyze (0-based index)
+ * `-f=<first>` : first gene tree to analyze (0-based index) (default: analyze all gene trees)
+ * `-l=<last>` : last gene tree to analyze (0-based index) (default: analyze all gene trees)
* `-r=<re-rooting>` : re-rooting method for gene trees, possible values or 'none', 'midpoint', or 'outgroup' (default: by minizming duplications)
* `-o=<outgroup>` : for rooting by outgroup, name of outgroup (external gene tree node)
* `-b` : to use SDIR instead of GSDIR (faster, but non-binary species trees are disallowed)