• UF Sparse Matrix Collection
  • Matrix group: Pajek
  • Click here for a description of the Pajek group.
  • Click here for a list of all matrices
  • Click here for a list of all matrix groups

  • Matrix: Pajek/EVA
  • Description: Pajek network: EVA, corporate inter-relationships
  • download as a MATLAB mat-file, file size: 182 KB. Use UFget(1471) or UFget('Pajek/EVA') in MATLAB.
  • download in Matrix Market format
  • download in Rutherford/Boeing format

    Pajek/EVA

    scc of Pajek/EVA

    Pajek/EVA graph

    Matrix properties
    number of rows8,497
    number of columns8,497
    nonzeros6,726
    structural full rank?no
    structural rank1,303
    # of blocks from dmperm766
    # strongly connected comp.8,482
    explicit zero entries0
    nonzero pattern symmetry 0%
    numeric value symmetry 0%
    typebinary
    structureunsymmetric
    Cholesky candidate?no
    positive definite?no

    authorK. Norlen, G. Lucas, M. Gebbie, J. Chuang
    editorV. Batagelj
    date2002
    kinddirected graph
    2D/3D problem?no

    Additional fieldssize and type
    nodenamefull 8497-by-85

    Notes:

    ------------------------------------------------------------------------------
Pajek network converted to sparse adjacency matrix for inclusion in UF sparse 
matrix collection, Tim Davis.  For Pajek datasets, See V. Batagelj & A. Mrvar,
http://vlado.fmf.uni-lj.si/pub/networks/data/.                                
------------------------------------------------------------------------------

    Ordering statistics:AMD METIS
    nnz(chol(P*(A+A'+s*I)*P'))15,529 16,030
    Cholesky flop count3.2e+04 4.1e+04
    nnz(L+U), no partial pivoting22,561 23,563
    nnz(V) for QR, upper bound nnz(L) for LU8,593 8,575
    nnz(R) for QR, upper bound nnz(U) for LU348,642 347,777

    Maintained by Tim Davis, last updated 04-May-2008.
    Matrix pictures by cspy, a MATLAB function in the CSparse package.
    Matrix graphs by Yifan Hu, AT&T Labs Visualization Group.