On Mar 9, 2012, at 10:41 AM, David Winsemius wrote:
On Mar 9, 2012, at 5:31 AM, RMSOPS wrote:
Hello,
the idea is to copy the d for df, with new results.
x<-data.frame(name="x1",pos=4,age=20)
x<-rbind(x,data.frame(name="x2",pos=5,age=20))
x<-rbind(x,data.frame(name="x3",pos=6,age=21))
x<-rbind(x,data.frame(name="x4",pos=7,age=24))
x<-rbind(x,data.frame(name="x5",pos=8,age=27))
x<-rbind(x,data.frame(name="x6",pos=9,age=26))
x <- data.frame(name=paste("x", 1:6, sep=""),
pos=3+1:6,
age=c(20,20, 21,24,27,26))
Added the missing comma and paren:
Is this what you were attempting?
> df <- x
> df$pos[2:nrow(df)] <- df$pos[2:nrow(df)]-4
> names(df) <- c("val_user", "pos", "age")
> df
val_user pos age
1 x1 4 20
2 x2 1 20
3 x3 2 21
4 x4 3 24
5 x5 4 27
6 x6 5 26
View(x)
d<-NULL
df<-NULL
for(r in 2: nrow(x))
{
val_user<-x$name[[r]]
pos<-x$pos[[r]] -4
age <-x$age[[r]]
d<-data.frame(val_user,pos,age)
print(d)
}
df<-rbind(df,d)
View(df)
It is generally better to spend more time describing the problem.
Attempting to read the mind of new R users who come from other
programming paradigms is often unrewarding.
--
David.
in df only have the last result, the ideia is have the new results
calculated in the for loop
thanks
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--
David Winsemius, MD
West Hartford, CT
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