Nothing
weighted.coeffvar <-
function(x,w){
n<-length(x)
cv<- sqrt(cov.wt(as.matrix(x,ncol=1),wt=w)$cov)/weighted.mean(x,w)
cvstar<- (1+1/(4*n))*cv # bias corrected
list(cv=cv,"bccv"=cvstar)
print("Warning: weighting is not properly accounted for in the sample adjustment of bccv!!")
}
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