Matrix: Pajek/Ragusa18

Description: Pajek network: Ragusa set

Pajek/Ragusa18 graph Pajek/Ragusa18 graph
(bipartite graph drawing) (graph drawing of A+A')


Pajek/Ragusa18
scc of Pajek/Ragusa18 Pajek/Ragusa18 graph

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  • Matrix group: Pajek
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  • download as a MATLAB mat-file, file size: 1 KB. Use UFget(1516) or UFget('Pajek/Ragusa18') in MATLAB.
  • download in Matrix Market format, file size: 1 KB.
  • download in Rutherford/Boeing format, file size: 1 KB.

    Matrix properties
    number of rows23
    number of columns23
    nonzeros64
    # strongly connected comp.8
    explicit zero entries0
    nonzero pattern symmetry 33%
    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 23-by-9
    coordfull 23-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/.                                
    ------------------------------------------------------------------------------
    

    SVD-based statistics:
    norm(A)6.98494
    min(svd(A))3.49403e-35
    cond(A)1.99911e+35
    rank(A)15
    null space dimension8
    full numerical rank?no
    singular value gap9.55194e+14

    singular values (MAT file):click here
    SVD method used:s = svd (full (A))
    status:ok

    Pajek/Ragusa18 svd

    For a description of the statistics displayed above, click here.

    Maintained by Tim Davis, last updated 12-Mar-2014.
    Matrix pictures by cspy, a MATLAB function in the CSparse package.
    Matrix graphs by Yifan Hu, AT&T Labs Visualization Group.