It calculates the Lambert's equal area projection.
lambert(y)
A two-column matrix with the projected points.
A two column matrix with the data. The first column is the altitude and the second is the longitude.
Michail Tsagris.
R implementation and documentation: Michail Tsagris mtsagris@uoc.gr and Giorgos Athineou <gioathineou@gmail.com>.
The spherical data are first rotated so that their mean direction is the north pole and then are projectedt on the plane tagent to the sphere at the north pole.
Kent, John T. (1982). The Fisher-Bingham distribution on the sphere. Journal of the Royal Statistical Society. Series B (Methodological) 44(1):71-80.
euclid, lambert.inv
x <- rvmf(100, rnorm(3), 20)
x <- euclid.inv(x)
a <- lambert(x)
plot(a)
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