[R] diagonal matrix: rows rearrangement

Federico Calboli f.calboli at imperial.ac.uk
Fri Jun 16 17:07:29 CEST 2006

Hi All,

I have a non-square matrix of 0s/1s. The rows are individuals, and the colums 
factors. The code is 1 if a factor is present, 0 if not.

I would like to rearrange the order of the rows to find if there are any 
diagonal blocks. Is there a fucntion that would do that already in R?



Federico C. F. Calboli
Department of Epidemiology and Public Health
Imperial College, St Mary's Campus
Norfolk Place, London W2 1PG

Tel  +44 (0)20 7594 1602     Fax (+44) 020 7594 3193

f.calboli [.a.t] imperial.ac.uk
f.calboli [.a.t] gmail.com

More information about the R-help mailing list