srswor {sampling}

Simple random sampling without replacement

Description

Draws a simple random sampling without replacement of size n (equal probabilities, fixed sample size, without replacement).

Usage

srswor(n,N)

Arguments

n

sample size.

N

population size.

Value

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).

See Also

srswr

Examples

############
## 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])