Insert a single edge into graph
insert_admix(
graph,
source_from = NULL,
source_to = NULL,
dest_from = NULL,
dest_to = NULL,
substitute = FALSE,
fix_outgroup = TRUE
)
An admixture graph
Parent node of the source edge
Child node of the source edge
Parent node of the destination edge
Child node of the destination edge
Should another edge be inserted, if the one specified doesn't work?
Adxmiture graph with inserted edge