1. netgsa::edgelist
    A data frame of edges, each row corresponding to one edge
  2. netgsa::group
    The vector of class indicators
  3. netgsa::nonedgelist
    A data frame of nonedges, each row corresponding to one negative edge
  4. netgsa::pathways
    A list of KEGG pathways
  5. netgsa::pathways_mat
    Matrix with pathway indicators
    matrix|100 x 2598
  6. netgsa::x
    Data matrix p by n
    matrix|2598 x 520