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BCSPWR05: Power network patterns
Equivalenced representation of western US power network

from set BCSPWR, from the Harwell-Boeing Collection

[Download] [Visualizations] [Matrix Statistics] [Set Information]


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Visualizations

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Structure Plot
structure plot


Matrix Statistics

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Size Type
443 x 443, 1033 entries pattern symmetric indefinite
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
1623 443 590 590 0
Column Data Row Data
Average nonzeros per column : 3.7
Standard deviation : 1.6

indexnonzeros
longest177 10
shortest4 2

Average nonzeros per row : 3.7
Standard deviation : 1.6

indexnonzeros
longest177 10
shortest4 2

Bandwidths Profile Storage
lower436 upper436
average |i-j|70 std.dev.99
minmaxave.std.dev.
lower bandwidth1 436 83 1.1e+02
upper bandwidth1 436 83 1.1e+02

Symmetric skyline storage requirement:36691

Heaviest diagonals
offset from main0 -1 1 -2 2 -3 3 -4 4 -58
nonzeros443 102 102 45 45 25 25 15 15 6
accumulated percent27.3033.5839.8642.6445.4146.9548.4949.4150.3450.71

Top 10 out of 471 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: ]