[R] randomisation

Peter Dalgaard p.dalgaard at biostat.ku.dk
Wed Feb 9 13:58:42 CET 2005


"Yann Clough" <y.clough at NS1.uaoe.gwdg.de> writes:

> Dear useRs
> 
> I am looking for a way to randomise the values within a matrix:
> the conditions are that the sums of the rows and the sums of the columns should 
> remain the same as in the original matrix.
> 
> Any help would be appreciated

Er, explain further... Are you shuffling around constant numbers (as
in the 0/1 values in item analysis) or can they be integers of varying
magnitude (as in coloured-balls-in-urns), or ?

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)             FAX: (+45) 35327907




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