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#(size b=c.three way mixed cx(bina). model 6 a case2)
# Section 3.4.4.5 test factor A, Sigma(b(a))=0 , b=c, case 2
# Three way mixed classification. (A>B)xC, Model VI
# Factor A is fixed, factor B and C are random.
# a and n are given, determining b and c. Testing hypothesis about factor A
# case2: assumption Sigma(b(a)) = 0 , b=c
size_bc.three_way_mixed_cxbina.model_6_a_case2 <- function(alpha, beta, delta, a, n, cases)
{
b <- 2
c <- b
dfn <- a-1
dfd <- (a-1)*(c-1)
if (cases == "maximin")
{
lambda <- 0.5*b*c*n*delta*delta
}
else if (cases == "minimin")
{
lambda <- 0.25*a*b*c*n*delta*delta
}
beta.calculated <- Beta(alpha, dfn, dfd, lambda)
if (is.nan(beta.calculated) || beta.calculated < beta )
{
warning(paste("Given parameter will result in too high power.",
"To continue either increase the precision or ",
"decrease the level of factors."))
return(NA)
}
else
{
b <- 5
b.new <- 1000
c <- b
while (abs(b -b.new)>1e-6)
{
b <- b.new
c <- b
dfn <- a-1
dfd <- (a-1)*(c-1)
lambda <- ncp(dfn,dfd,alpha,beta)
if (cases == "maximin")
{
b.new <- sqrt(2*lambda/(n*delta*delta))
}
else if (cases == "minimin")
{
b.new <- sqrt(4*lambda/(a*n*delta*delta))
}
}
return(ceiling(b.new))
}
}
# example
# size.3_4_4_5.test_factor_A.case2(0.05, 0.1, 0.5, 6, 2, "maximin")
# size.3_4_4_5.test_factor_A.case2(0.05, 0.1, 0.5, 6, 2, "minimin")
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