Retrieve or assign named vector of pathways for each gene.
K2gene2Pathway(K2res)
K2gene2Pathway(K2res) <- value
# S4 method for class 'K2'
K2gene2Pathway(K2res)
# S4 method for class 'K2'
K2gene2Pathway(K2res) <- valueNamed vector. A vector with collapse pathway names for each gene.