You are probably encountering an annoying behaviour of sample(): when it is
given exactly one integer as an argument, it takes this as the upper limit of a
range.
a <- c(3,5)
sample(a,10, replace=TRUE)
#[1] 5 5 3 3 3 3 3 3 3 5
a <- c(5)
sample(a,10, replace=TRUE)
#[1] 2 1 3 1 1 3 4 5 1 4
#i.e
It's a well known quirk of sample that it changes behavior when the x argument
has length 1:
> replicate(10,sample(4:5, 1))
[1] 5 4 5 4 5 4 5 4 4 4
> replicate(10,sample(5:5, 1))
[1] 5 3 1 1 1 2 5 3 2 2
One workaround is to zap the offending branch inside sample:
> Sample <- function (x, size
On Thu, 22 May 2014 09:54:13 AM Ragia Ibrahim wrote:
> Hi,
> kindly I want to select randomly and item from list of items. the list
> generated in a looping process. I used sample(mylist,1) it works fine.
> BUTsome times the list have only one item. that should be chosen in
this
> case since there
Hi,
I am not sure I understand the problem. Please provide a reproducible example
using ?dput().
mylist <- list(1:3, LETTERS[1:2], rnorm(4))
sample(mylist,1)
sample(mylist,1)
mylist1 <- list(1:2)
sample(mylist1,1)
#[[1]]
#[1] 1 2
sample(mylist1,1)
#[[1]]
#[1] 1 2
A.K.
On Thursday, May
Hi,
kindly I want to select randomly and item from list of items. the list
generated in a looping process.
I used sample(mylist,1) it works fine. BUTsome times the list have only one
item. that should be chosen in this case since there is no other one.
I found that sample return different item n
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