export fitted abn to .net file to be read by e.g. HUGIN GUI.

These might help:

• https://github.com/huginexpert/RHugin
• https://github.com/cran/bnlearn/blob/0e4d3af6ad579b79bc9959e77385ec6b825ca6fc/R/frontend-foreign.R#L73 and https://github.com/cran/bnlearn/blob/0e4d3af6ad579b79bc9959e77385ec6b825ca6fc/R/foreign-write.R#L3

the data field in .net file contains the CPT of the nodes.

alternatives to HUGIN (commercial):

• https://cytoscape.org/
• https://gephi.org/

they use .dot files.