[R] Ordering variables in a parallel coordinates plot

Dieter Menne dieter.menne at menne-biomed.de
Sun Jan 3 22:25:26 CET 2010


Hi, Tal,


Tal Galili wrote:
> 
> In any case, my question wasn't on how to reorder the columns (that is
> simple), but on how to choose what order to put them in.
> 

So is your question answered? Or what exactly is the problem using the
example below?

library(lattice)
parallel(~iris[1:4] | Species, iris) 
# if I understand you, this is "easy"
parallel(~iris[c(3,2,1,4)] | Species, iris) 

# so I only can think you mean this...
iris$SpeciesR =  with(iris, 
  factor(Species,levels= levels(Species)[c(3,1,2)]))
parallel(~iris[1:4] | SpeciesR, iris) 
# .. but I am sure you know this already


Dieter

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