It transforms the data from the spherical coordinates to Euclidean coordinates.
euclid(u)A two column matrix or even one single vector, where the first column (or element) is the latitude and the second is the longitude. The order is important.
A three column matrix:
The Euclidean coordinates of the latitude and longitude.
It takes the matrix of unit vectors of latitude and longitude and transforms it to unit vectors.
# NOT RUN {
x <- rvmf(10, rnorm(3), 10)
u <- euclid.inv(x)
euclid(u)
x
# }
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