Nothing
ARsensitivity.power <-function(n,k,lambda,gamma,var.z,sigma1,sigma2,rho,alpha=.05,
Delta=NULL, delta=NULL){
if(!is.null(Delta)){
if(is.numeric(Delta) & length(Delta)==2){
Delta <- sort(Delta)
if(!is.null(delta)){
if(is.numeric(delta) & length(delta)==1){
ncp1 = (lambda*gamma+delta*sigma1)^2*n*var.z/
(sigma1^2+2*rho*sigma1*sigma2*lambda+sigma2^2*lambda^2)
ncp2 = max(Delta^2)*n*var.z
}else{
print("Wrong input of the true sensitivity parameter")
stop()
}
}else{
if((Delta[1] < -gamma*lambda/sigma1) & (Delta[2] > -gamma*lambda/sigma1)){
ncp1=0
}else{
ncp1=min((lambda*gamma+Delta[1]*sigma1)^2,(lambda*gamma+Delta[2]*sigma1)^2)*
n*var.z/(sigma1^2+2*rho*sigma1*sigma2*lambda+sigma2^2*lambda^2)
}
ncp2 = max(Delta^2)*n*var.z
}
}else{
print("Wrong input of the sensitivity range.")
stop()
}
}else{
if(!is.null(delta)){
print("Sensitivity range missing")
}else{
ncp1 = lambda^2*gamma^2*n*var.z/
(sigma1^2+2*rho*sigma1*sigma2*lambda+sigma2^2*lambda^2)
ncp2 = 0
}
}
temp = qf(1-alpha, df1=1, df2=n-k-1, ncp=ncp2)
power = 1-pf(temp, df1=1, df2=n-k-1, ncp=ncp1)
return(power)
}
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