srswor | R Documentation |
Draws a simple random sampling without replacement of size n (equal probabilities, fixed sample size, without replacement).
srswor(n,N)
n |
sample size. |
N |
population size. |
Returns a vector (with elements 0 and 1) of size N, the population size. Each element k of this vector indicates the status of unit k (1, unit k is selected in the sample; 0, otherwise).
srswr
############
## Example 1
############
#select a sample
s=srswor(3,10)
#the sample is
which(s==1)
############
## Example 2
############
data(belgianmunicipalities)
Tot=belgianmunicipalities$Tot04
name=belgianmunicipalities$Commune
n=200
#select a sample
s=srswor(n,length(Tot))
#the sample is
which(s==1)
#names of the selected units
as.vector(name[s==1])
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