Nothing
B2=function(alpha,data,group){
n=tapply(data, group, length)
k=length(tapply(data, group, length))
xbar=tapply(data, group, mean)
var=tapply(data, group, var)
w=(n/var)/sum(n/var);
mu=sum(w*xbar);
t=(xbar-mu)/sqrt(var/n);
v=n-1;
zc=qnorm(1-alpha/2);
c=(4*v^2+((10*zc^2+15)/(24)))/((4*v^2)+v+((4*zc^2+9)/(12)))*sqrt(v)
z=c*sqrt(log(1+(t^2/v)));
BK=sum(z^2);
pvalue=1-pchisq(BK,k-1);
result=matrix(c(round(BK,digits=4),round(k-1),round(pvalue,digits=4)))
rownames(result)=c("Test Statistic","df","p-value")
colnames(result)=c("B2")
return(t(result))
}
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