BCSPWR01: Power network patterns
Standard IEEE test power system -- New England

from set BCSPWR, from the Harwell-Boeing Collection

Download as

Compressed MatrixMarket format file: bcspwr01.mtx.gz (271 bytes)
Compressed Harwell-Boeing format file: bcspwr01.psa.gz (366 bytes)

Visualizations

Click on image to get an enlarged version. Click on label to get an explanation.

Structure Plot

Matrix Statistics

Size	Type
39 x 39, 85 entries	pattern symmetric indefinite
Nonzeros
total diagonal below diagonal above diagonal A-A' 131 39 46 46 0
Column Data	Row Data
Average nonzeros per column : 3.4 Standard deviation : 1 index nonzeros longest 16 6 shortest 30 2	Average nonzeros per row : 3.4 Standard deviation : 1 index nonzeros longest 16 6 shortest 30 2
Bandwidths	Profile Storage
lower 39 upper 39 average |i-j| 5.3 std.dev. 8.5	min max ave. std.dev. lower bandwidth 1 39 8.5 9.2 upper bandwidth 1 39 8.5 9.2 Symmetric skyline storage requirement:331
Heaviest diagonals
offset from main 0 -1 1 -3 3 -14 14 -13 -10 -5 nonzeros 39 22 22 4 4 3 3 2 2 2 accumulated percent 29.77 46.56 63.36 66.41 69.47 71.76 74.05 75.57 77.10 78.63 Top 10 out of 35 nonvoid diagonals.
Conditioning
Pattern matrix. No conditioning information.

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