On Sep 6, 2011, at 8:13 PM, Jack Siegrist wrote:
I want to sample within groups, and when a group has only one
associated
number to just return that number.
And what we supposed to do when it has more than one value?????
If I use this code:
groups <- c(1, 2, 2, 2, 3)
numbers <- 1:5
tapply(numbers, groups, FUN = sample)
I get the following output:
groups <- c(1, 2, 2, 2, 3)
numbers <- 1:5
tapply(numbers, groups, FUN = sample)
$`1`
[1] 1
$`2`
[1] 3 2 4
$`3`
[1] 2 3 5 1 4
Can someone tell me why the $'3' result samples all of the numbers
and how
to prevent it from doing so? I want the output for the $'3' part to
just be
5 in this example.
Type:
sample(5)
If typing it once, does not lead you to enlightenment, then continue
typing it until enlightenment is achieved.
--
David "Buddha" Winsemius
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