The cone or plane best fit of conically or cylindrical disposed s-plane poles
Source:R/best_pole_ramsay.R
best_pole.Rd
Finding the best fit pole of rotation for a given set of points that are assumed to lie on a mutual small or great circle circle
Value
numeric vector with
x
,y
,z
Cartesian coordinates of best fit pole of plane or cone axis,
e
residual of the sum of square of the deviations of the observed poles to the planes from the best fit pole, and
K
(only for cones) half apical angle of best fit cone (in radians).
Examples
if (FALSE) { # \dontrun{
# example from Ramsay, 1967, p. 20
x <- rbind(
c(-67, -31, -71),
c(-62, -53, -50),
c(-62, -75, -34),
c(-58, 85, -34),
c(-79, 40, -52),
c(90, 14, -75),
c(80, 10, 90)
) |> acoscartesian_to_cartesian()
best_cone_ramsay(x) # expect: c(0.856, -0.157, -0.492, NA, 1.56207)
best_plane_ramsay(x) # expect: c(0.852, -0.154, -0.502, 1-1.002)
} # }