Matrix: Pajek/divorce
Description: Pajek network: divorce laws in the 50 US states
(bipartite graph drawing) |
Matrix properties | |
number of rows | 50 |
number of columns | 9 |
nonzeros | 225 |
structural full rank? | yes |
structural rank | 9 |
# of blocks from dmperm | 1 |
# strongly connected comp. | 1 |
explicit zero entries | 0 |
nonzero pattern symmetry | 0% |
numeric value symmetry | 0% |
type | binary |
structure | rectangular |
Cholesky candidate? | no |
positive definite? | no |
author | |
editor | V. Batagelj |
date | 2006 |
kind | bipartite graph |
2D/3D problem? | no |
Additional fields | size and type |
colname | full 9-by-8 |
rowname | full 50-by-14 |
Notes:
------------------------------------------------------------------------------ Pajek network converted to sparse adjacency matrix for inclusion in UF sparse matrix collection, Tim Davis. For Pajek datasets, See V. Batagelj & A. Mrvar, http://vlado.fmf.uni-lj.si/pub/networks/data/. ------------------------------------------------------------------------------ http://www.stat.lsa.umich.edu/~faraway/stat503/labs/
SVD-based statistics: | |
norm(A) | 12.5529 |
min(svd(A)) | 0.64736 |
cond(A) | 19.3908 |
rank(A) | 9 |
sprank(A)-rank(A) | 0 |
null space dimension | 0 |
full numerical rank? | yes |
singular values (MAT file): | click here |
SVD method used: | s = svd (full (R)) ; where [~,R,E] = spqr (A) with droptol of zero |
status: | ok |
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.