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