hi,
I am encoutering a very little problem that seemed to be so easy to solve
I need to divide the array
A-c(1:200)
into two subsets at random. Therefore I use the function sample in R:
S-sample(A,100)
for a random sample of size 100. Then I need the values in A that are not
selected
which(A%in%S==FALSE)
Best
Matthias
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[EMAIL PROTECTED]
Gesendet: Donnerstag, 13. Jänner 2005 13:51
An: r-help@stat.math.ethz.ch
Betreff: [R] random samples
hi,
I am encoutering a very
See ?setdiff.
Andy
From: [EMAIL PROTECTED]
hi,
I am encoutering a very little problem that seemed to be so
easy to solve
I need to divide the array
A-c(1:200)
into two subsets at random. Therefore I use the function
sample in R:
S-sample(A,100)
for a random sample
Dear Nicolas,
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
[EMAIL PROTECTED]
Sent: Thursday, January 13, 2005 7:51 AM
To: r-help@stat.math.ethz.ch
Subject: [R] random samples
hi,
I am encoutering a very little problem that seemed to be so
On Thu, Jan 13, 2005 at 01:50:38PM +0100, [EMAIL PROTECTED] wrote:
I need to divide the array
A-c(1:200)
into two subsets at random. Therefore I use the function sample in R:
I suggest a slightly different approach which is probably faster than
using setdif() or %in% and friends:
a -
