Cochran's distribution
Distribution function and quantile function for Cochran's distribution.
qcochran(p, k, n, lower.tail = TRUE, log.p = FALSE) pcochran(q, k, n, lower.tail = TRUE, log.p = FALSE)
p |
vector of probabilities. |
k |
number of groups. |
n |
(average) sample size of the k groups. |
lower.tail |
logical; if TRUE (default), probabilities are P[X <= x] otherwise, P[X > x]. |
log.p |
logical; if TRUE, probabilities p are given as log(p). |
q |
vector of quantiles. |
pcochran gives the distribution function and
qcochran gives the quantile function.
Cochran, W.G. (1941) The distribution of the largest of a set of estimated variances as a fraction of their total. Ann. Eugen. 11, 47–52.
Wilrich, P.-T. (2011) Critical values of Mandel's h and k, Grubbs and the Cochran test statistic. Adv. Stat. Anal.. doi: 10.1007/s10182-011-0185-y.
qcochran(0.05, 7, 3)
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