Geoff -
I think this will get you closer to a solution:
newdf = reshape(df,varying=names(df)[-c(1,2)],direction='long',
times=2000:2003,idvar=c('country','food'),v.names='X',
timevar='year')
xyplot(X~year|country*food,data=newdf)
- Phil Spector
Statistical Computing Facility
Department of Statistics
UC Berkeley
spec...@stat.berkeley.edu
On Fri, 18 Feb 2011, Geoff Russell wrote:
df=data.frame(country=c("A","A","A","B","B","B"),
food=rep(c("Apples","Pears","Bananas"),2),
X2000=c(4,5,6,7,6,8),
X2001=c(4,5,6,7,6,8),
X2002=c(4,5,6,7,6,8),
X2003=c(4,5,6,7,6,8));
I have data in the above form trying to get a plot of each fruit over time
year conditioned on country and food.
I tried,
xyplot(X2000+X2001+X2002+X2003~2000:2003|country*food,df)
But think I need to transform the data, just not sure
how. Any help gratefully received.
Cheers,
Geoff.
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