Matrix: Gset/G18

Description: Random matrix, nodes 1..n descreasing average degree.G14=pattern of G18

Gset/G18 graph
(undirected graph drawing)

Gset/G18

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  • Matrix group: Gset
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  • download as a MATLAB mat-file, file size: 21 KB. Use UFget(478) or UFget('Gset/G18') in MATLAB.
  • download in Matrix Market format, file size: 15 KB.
  • download in Rutherford/Boeing format, file size: 11 KB.

    Matrix properties
    number of rows800
    number of columns800
    nonzeros9,388
    # strongly connected comp.1
    explicit zero entries0
    nonzero pattern symmetrysymmetric
    numeric value symmetrysymmetric
    typeinteger
    structuresymmetric
    Cholesky candidate?no
    positive definite?no

    authorC. Helmberg
    editorY. Ye
    date1996
    kindundirected weighted random graph
    2D/3D problem?no

    SVD-based statistics:
    norm(A)12.8307
    min(svd(A))0.00160617
    cond(A)7988.38
    rank(A)800
    null space dimension0
    full numerical rank?yes

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

    Gset/G18 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.