haplo.stats (version 1.7.6)

chisq.power: Power and sample size for the chi-square distribution

Description

Power and sample size for the chi-square distribution given non-centrality, degrees of freedom, alpha, N (for chisq.power), and power (for chisq.sample.size)

Usage

chisq.power(n, nc, df, alpha)
chisq.power.dif(n, nc, df, alpha, power)
chisq.sample.size(nc, df=df, alpha, power, lower=20, upper=100000)

Arguments

n

sample size (for power)

nc

non-centrality parameter

df

degrees of freedom

alpha

type-I error rate

power

desired power (for sample size)

lower

lower bound for search space for sample size

upper

upper bound for search space for sample size

Value

• power, the difference in power from target power, and sample size, respectively for the three different functions