multilevel (version 2.5)

sam.cor: Generate a Sample that Correlates with a Fixed Set of Observations

Description

This function will generate a vector (y) with a known correlation to a given vector (x). The degree of correlation between x and y is determined by the parameter rho (the population correlation). Observed sample correlations between x and y will vary around rho, but this variation will decrease as the size of x increases.

Usage

sam.cor(x,rho)

Arguments

x

The given vector.

rho

Population correlation.

Value

y

A vector of numbers correlated with x.

See Also

simbias

Examples

   data(bh1996)
   NEWVAR<-sam.cor(x=bh1996$LEAD,rho=.30)
   cor(bh1996$LEAD,NEWVAR)