Power and sample size for the F distribution given non-centrality, degrees of freedom, alpha, N (for f.power), and power (for f.sample.size)
f.power(n, nc, df1, alpha)
f.power.dif(n, nc, df1, alpha, power)
f.sample.size(nc, df1, alpha, power, lower=20, upper=10000)power, the difference in power from target power, and sample size, respectively for the three functions, assuming an F distribution for the test statistic
sample size
non-centrality parameter
degrees of freedom for numerator of f distribution
type-I error
desired power (for sample size)
lower limit for search space for sample size solution
upper limit for search space for sample size solution