Matrix: Meszaros/scagr7-2c

Description: LP sequence: scagr7-2c-4, 16, 64

Meszaros/scagr7-2c graph
(bipartite graph drawing)

Meszaros/scagr7-2c dmperm of Meszaros/scagr7-2c

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  • Matrix group: Meszaros
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  • download as a MATLAB mat-file, file size: 45 KB. Use UFget(1828) or UFget('Meszaros/scagr7-2c') in MATLAB.
  • download in Matrix Market format, file size: 73 KB.
  • download in Rutherford/Boeing format, file size: 57 KB.

    Matrix properties
    number of rows2,447
    number of columns3,479
    structural full rank?yes
    structural rank2,447
    # of blocks from dmperm2
    # strongly connected comp.1
    explicit zero entries0
    nonzero pattern symmetry 0%
    numeric value symmetry 0%
    Cholesky candidate?no
    positive definite?no

    editorC. Meszaros
    kindlinear programming problem sequence
    2D/3D problem?no

    Additional fieldssize and type
    Acell 3-by-1
    bcell 3-by-1
    ccell 3-by-1
    locell 3-by-1
    hicell 3-by-1
    z0cell 3-by-1

    Converted to standard form via Resende and Veiga's mpsrd:
    minimize c'*x, subject to A*x=b and lo <= x <= hi        
    Determinisitic equivalent of stochastic LP               

    Ordering statistics:result
    nnz(V) for QR, upper bound nnz(L) for LU, with COLAMD437,254
    nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD149,305

    SVD-based statistics:
    null space dimension0
    full numerical rank?yes

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

    Meszaros/scagr7-2c 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.