Description Usage Arguments Details Value
Calculates plotting point positions according to different authors
1 2 3 4 | ppPositions(
n,
method = c("Gringorton", "Cunane", "Filliben", "Blom", "Weibull", "ppoints")
)
|
n |
numeric, the sample size |
method |
a character string naming a valid method (see Details) |
The following methods can by selected:
"Gringorton"
the plotting point positions are
calculated as
m[i] = (i - 0.44) / (n + 0.12)
"Cunane"
the plotting point positions are
calculated as
m[i] = (i - 0.4) / (n + 0.2)
"Blom"
the plotting point positions are
calculated as
m[i] = (i - 0.3175) / (n + 0.25)
"Filliben"
the order statistic medians are calculated as:
m[1] = 1 - 0.5^(1/n); m[i] = (i - 0.3175) / (n + 0.365), for i = 2,…, n - 1; m[n] = 0.5^(1/n)
"ppoints"
R core's default plotting point positions
are calculated (see ppoints
).
a vector of class numeric that contains the plotting positions
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