This seems to work:
tmp - aggregate(DF$y, list(DF$x, DF$f), mean)
tmp2 - aggregate(DF$conc, list(DF$x, DF$f), paste,collapse=, )
names(tmp2)[3] - var1
final - merge(tmp,tmp2)
--- Lauri Nikkinen [EMAIL PROTECTED] wrote:
#Hi R-users,
#I have an example DF like this:
y1 - rnorm(10) + 6.8
#Hi R-users,
#I have an example DF like this:
y1 - rnorm(10) + 6.8
y2 - rnorm(10) + (1:10*1.7 + 1)
y3 - rnorm(10) + (1:10*6.7 + 3.7)
y - c(y1,y2,y3)
x - rep(1:3,10)
f - gl(2,15, labels=paste(lev, 1:2, sep=))
g - seq(as.Date(2000/1/1), by=day, length=30)
DF - data.frame(x=x,y=y, f=f, g=g)
DF$wdays
