Hi All,
I'm trying to use the sample function within a loop where the
vector being sampled from (the first argument in the function) will
vary in length and composition. When the vector is down in size to
containing only one element, I run into the undesired behaviour
acknowledged in the
Try this:
x - 10
sample(x, 1, prob = c(rep(0, x - 1), 1))
On Thu, Jul 22, 2010 at 5:31 PM, Jon BR jonsle...@gmail.com wrote:
Hi All,
I'm trying to use the sample function within a loop where the
vector being sampled from (the first argument in the function) will
vary in length and
Did you look at the examples in sample?
# sample()'s surprise -- example
x - 1:10
sample(x[x 8]) # length 2
sample(x[x 9]) # oops -- length 10!
sample(x[x 10]) # length 0
## For R = 2.11.0 only
resample - function(x, ...) x[sample.int(length(x), ...)]
resample(x[x 8]) # length
I see.. Thanks!
On Thu, Jul 22, 2010 at 4:39 PM, Hadley Wickham had...@rice.edu wrote:
Did you look at the examples in sample?
# sample()'s surprise -- example
x - 1:10
sample(x[x 8]) # length 2
sample(x[x 9]) # oops -- length 10!
sample(x[x 10]) # length 0
## For R =
And, surely, regardless of R version:
resamp - function(x,...){if(length(x)==1) x else sample(x,...)}
resamp((1:10),10)
# [1] 8 2 10 6 5 4 3 7 9 1
resamp((1:10),1)
# [1] 7
resamp((1:10),1)
# [1] 4
resamp((1:10),1)
# [1] 10
resamp(10,1)
# [1] 10
resamp(10,1)
#
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