[R] sorting matrices

Peter Dalgaard BSA p.dalgaard at biostat.ku.dk
Wed Jul 10 19:06:32 CEST 2002


alexander.schnee at tuebingen.mpg.de writes:

> how can i sort a matrix by sorting the first colloum in ascending
> order and have the values of the other colloums in the relative
> position to the sorted values.

(Don't we have this in a FAQ somewhere?) 

m[order(m[,1]),]

BTW : It is spelled "column".
-- 
   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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