Estimates concentration parameter, angular standard deviation, and
confidence limit.
Usage
fisher_statistics(x, w = NULL, p = 0.05)
Arguments
- x
numeric. Can be three element vector, three column array, or an
object of class "line" or "plane"
- w
numeric. Weights
- p
numeric. Significance level (0.05 by default), corresponding to
\(100 * (1-p) - 95\%\) confidence level.
Value
list, with
"k"estimated concentration parameter \(\kappa\) for the von Mises-Fisher
distribution
"csd"estimated angular standard deviation enclosing 63% of the orientation data. Angle is in degrees if x is a spherical object, and raidan if otherwise.
"a95"Confidence limit for given p. Angle is in degrees if x is a spherical object, and raidan if otherwise.
Examples
x <- rvmf(100, mu = Line(120, 50), k = 5)
fisher_statistics(x)
#> $k
#> [1] 4.241875
#>
#> $csd
#> [1] 39.32838
#>
#> $csd_2s
#> [1] 67.97498
#>
#> $alpha
#> [1] 7.842509
#>