[R] ordering of levels.
Wolski
wolski at molgen.mpg.de
Mon Jul 26 20:48:05 CEST 2004
Hi!
Have the following factors with the following levels.
tmp$norm
[1] rank rank rank rank rank log log log rank sqrt sqrt sqrt log log rank
[16] rank rank sqrt sqrt sqrt sqrt log log log log sqrt none none none none
[31] none none none none sqrt none
Levels: log none rank sqrt
I would like to add an ordering to the levels.
none<sqrt<log<rank
I tried with
tmp$norm <-factor(tmp$norm,labels = c("none","sqrt","log","rank"),ordered=T)
>tmp$norm
[1] log log log log log none none none log rank rank rank none none log
[16] log log rank rank rank rank none none none none rank sqrt sqrt sqrt sqrt
[31] sqrt sqrt sqrt sqrt rank sqrt
Levels: none < sqrt < log < rank
But this is not what I would like to have because the command not only superimposes an ordering but also changes the factors!
Eryk
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