Pajek/Ragusa16 graph

Matrix: Pajek/Ragusa16

Description: Pajek network: Ragusa set


  • UF Sparse Matrix Collection
  • Matrix group: Pajek
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  • download as a MATLAB mat-file, file size: 2 KB. Use UFget(1515) or UFget('Pajek/Ragusa16') in MATLAB.
  • download in Matrix Market format
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    Pajek/Ragusa16

    scc of Pajek/Ragusa16

    Pajek/Ragusa16 graph

    Matrix properties
    number of rows24
    number of columns24
    nonzeros81
    structural full rank?no
    structural rank18
    # of blocks from dmperm6
    # strongly connected comp.10
    explicit zero entries0
    nonzero pattern symmetry 37%
    numeric value symmetry 20%
    typeinteger
    structureunsymmetric
    Cholesky candidate?no
    positive definite?no

    authorV. Batagelj
    editorV. Batagelj
    date2006
    kinddirected weighted graph
    2D/3D problem?no

    Additional fieldssize and type
    nodenamefull 24-by-9
    coordfull 24-by-3

    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'))95 96
    Cholesky flop count4.7e+02 4.7e+02
    nnz(L+U), no partial pivoting166 168
    nnz(V) for QR, upper bound nnz(L) for LU64 45
    nnz(R) for QR, upper bound nnz(U) for LU144 145

    Maintained by Tim Davis, last updated 30-Sep-2008.
    Matrix pictures by cspy, a MATLAB function in the CSparse package.
    Matrix graphs by Yifan Hu, AT&T Labs Visualization Group.