On 08.05.2011 17:10, André Júng wrote:
Dear all,
I'm trying to rearrange variables in a table in a custum order for using it
with levelplot. So far I could only find examples showing how to sort
alphabetically. Here is a short example:
a<- c("Anna","Anna","Michael","Klaus","Klaus","Anna","Fritz")
b<- c("Schnitzel","Pommes","Pommes","Schnitzel","Wurst","Schnitzel","Schnitzel")
Hmmm, why don't you ask your supervisor about your homework? I wonder
who your supervisor is.
Anyway, some hint:
Replace b by a factor with levels in the desired order.
food<- matrix(c(a,b),7)
as.data.frame(food) -> tmp
Please replace the two lines above by something like
food <- data.frame(names=a, food=b)
beacuse 1. your matrix will destroy the factor again and is not required
at all, and 2. never ever use "->" which makes your code almost unreadable.
Uwe Ligges
as.data.frame(table(tmp)) -> X
levelplot(X$Freq ~ X$V1 * X$V2,xlab="people",ylab="food")
Food is now ordered: Pommes, Schnitzel, Wurst.
But I need: Schnitzel, Pommes, Wurst.
How can I define the order? I'm happy about every suggestion.
Thanks in advance!
Andre
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