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keeporderunique
2004 Sep 29
1
Ordering of values returned by unique
...ull for some applications (e.g tree traversal), so i use it in a
script. But I am a little woried if I can rely on this behaviour in
further versions. And furthermore can I assume that someone reading the
code will think that it works in that way?
Or is it better to define a additional function?
keeporderunique<-function(x)
{
res<-rep(NA,length(unique(x))
count<-0
for(i in x)
{
if(!i%in%res)
{
count<-count+1
res[count]<-i
}
}
res
}
/E
--
Dipl. bio-chem. Witold Eryk Wolski
MPI-Mo...