How to draw a singleton？

[billzhanghantao]

Thank you very much for developing this tool, but I'm having problems visualising the singleton and don't know how to fix it.
Since singleton doesn't belong to any hog, I encountered this error when running ham_analysis.get_hog_by_gene(gene_iseg): TypeError: Invalid argument Gene(138338) for HOG.
When I switch to the other way and run the following commands in sequence:
filter_ham = pyham.ParserFilter()
filter_ham.add_hogs_via_GeneIntId([138338])
ham_analysis_filter = pyham.Ham(tree_str, orthoxml_path, use_internal_name=True, filter_object=filter_ham)
treeprofile = ham_analysis_filter.create_tree_profile(outfile="/Users/test.html")
from IPython.display import IFrame
IFrame("/Users/zhanghantao/Desktop/test.html", width=240, height=120)
I encountered this error：KeyError: 'No ancestral genomes match the query name: 1'，the 1 I assume refers to the root node in my evolutionary tree.
Can you please tell me how to visualize singletons using pyham?

[F4llis]

Hello,

Singleton gene does not belong to any hogs therefore it's not possible to access them through/toward hog object or to use hog based features such as create_tree_profile.

You can access your extant gene using ham_analysis.get_gene_by_id function. No tree profile is available for this object though since it's an gene and not a hierarchical group.

I hope this helps,
Clement