Hi,
Not sure whether this is what you wanted.
df.1[rep(1:nrow(df.1),df.1[,2]),]
A.K.
On Tuesday, November 26, 2013 12:31 PM, Burhan ul haq <ulh...@gmail.com> wrote:
Hi,
My problem is as follows:
INPUT:
"Frequency" from one column and value of "Piglets" from another one
OUTPUT:
Repeat this "Piglet" value as per the "Frequency"
i.e.
Piglet 1, Frequency 3, implies 1,1,1
Piglet 7, Frequency 2, implies 7,7
SOLUTION:
This is what I have tried so far:
1. A helper function:
> dput(fn.1)
function (df.1, vt.1)
{
i = c(1)
for (i in seq_along(dim(df.1)[1])) {
print(i)
temp = rep(df.1$Piglets[i], df.1$Frequency[i])
append(vt.1, values = temp)
}
}
2. A dummy data frame:
> dput(df.1)
structure(list(Piglets = 5:14, Frequency = c(1L, 0L, 2L, 3L,
3L, 9L, 8L, 5L, 3L, 2L)), .Names = c("Piglets", "Frequency"), class =
"data.frame", row.names = c(NA,
-10L))
3. A dummy vector to hold results:
> dput(vt.1)
1
4. Finally the function call:
fn.1(df.1, vt.1)
5. The results is:
[1] 1
PROBLEM:
The result is not a repetition of Piglet value as per their respective
frequencies.
Thanks in advance for guidance and help.
CheeRs !
p.s I have used caps for my heading / sections, nothing else is implied by
their use.
[[alternative HTML version deleted]]
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