1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
"limits.g" <-
function (center, std.dev, sizes, conf)
{
if (conf >= 1) {
p <- 1/center
lcl <- center - conf * sqrt(1-p)/p
lcl[lcl < 0] <- 0
ucl <- center + conf * sqrt(1-p)/p
warning("The Geometric distribution is quite skewed, it is better to set conf at the required confidence level (0 < conf < 1) instead of as a multiplier of sigma.")
}
else {
if (conf > 0 & conf < 1) {
p <- 1/center
ucl <- qgeom(1 - (1 - conf)/2, p)
lcl <- qgeom((1 - conf)/2, p)
}
else stop("invalid conf argument. See help.")
}
limits <- matrix(c(lcl, ucl), ncol = 2)
rownames(limits) <- rep("", length = nrow(limits))
colnames(limits) <- c("LCL", "UCL")
return(limits)
}
|
