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BCSPWR07: Power network patterns
Western US power network -- 1612 bus

from set BCSPWR, from the Harwell-Boeing Collection

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Visualizations

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Structure Plot
structure plot


Matrix Statistics

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Size Type
1612 x 1612, 3718 entries pattern symmetric indefinite
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
5824 1612 2106 2106 0
Column Data Row Data
Average nonzeros per column : 3.6
Standard deviation : 1.6

indexnonzeros
longest673 13
shortest2 2

Average nonzeros per row : 3.6
Standard deviation : 1.6

indexnonzeros
longest673 13
shortest2 2

Bandwidths Profile Storage
lower1488 upper1488
average |i-j|40 std.dev.1.2e+02
minmaxave.std.dev.
lower bandwidth1 1488 56 1.5e+02
upper bandwidth1 1488 56 1.5e+02

Symmetric skyline storage requirement:90669

Heaviest diagonals
offset from main0 -1 1 -2 2 -3 3 -4 4 -6
nonzeros1612 425 425 153 153 89 89 56 56 44
accumulated percent27.6834.9842.2744.9047.5349.0650.5851.5552.5153.26

Top 10 out of 533 nonvoid diagonals.
Conditioning
Pattern matrix. No conditioning information.


Set Information

Set BCSPWR
Source: Collected by B. Dembart and J. Lewis, Boeing Computer Services, Seattle, WA, USA
Discipline:Power networks
Accession:Summer 1981


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Last change in this page: Wed Sep 22 13:33:22 US/Eastern 2004 [Comments: ]