Subset the ligand-receptor interactions for given specific signals in CellChatDB
searchPair(
signaling = c(),
pairLR.use,
key = c("pathway_name", "ligand"),
matching.exact = FALSE,
pair.only = TRUE
)
a character vector
a dataframe containing ligand-receptor interactions
the keyword to match
whether perform exact matching
whether only return ligand-receptor pairs without cofactors