Arotation               Rotation axis and angle of rotation given a
                        rotation matrix.
Directional-package     This is an R package that provides methods for
                        the statistical analysis of Directional data.
acg                     MLE of the angular central Gaussian
                        distribution
bic.mixvmf              BIC to choose the number of components in a
                        model based clustering using mixtures of von
                        Mises-Fisher distributions
circ.cor1               Circurlar correlations between two circular
                        variables
circ.summary            Summary statistics for circular data.
circlin.cor             Circular-linear correlation.
conc.test               A test for testing the equality of the
                        concentration parameter among g samples, where
                        g >= 2 for ciruclar data
dirknn                  k-NN algorithm using the arc cosinus distance
dirknn.tune             k-NN algorithm using the arc cosinus distance.
                        Tuning the k neigbours
euclid                  Euclidean transformation
euclid.inv              Inverse of the Euclidean transformation
f.rbing                 Simulating from a Bingham distribution
fb.saddle               Saddlepoint approximations of the
                        Fisher-Bingham distributions
fishkent                Hypothesis test for von Mises-Fisher
                        distribution over Kent's distribution
group.gof               Goodness of fit test for grouped data
group.vm                Summary statistics for grouped circular data
hcf.aov                 Analysis of variance for (hyper-)spherical data
hcf.circaov             Analysis of variance for circular data
kent.contour            Contour plot of the Kent distribution without
                        any data
kent.datacontour        Contour plot of the Kent distribution without
                        any data.
kent.logcon             Logarithm of the Kent normalizing constant
kent.mle                MLe of the Kent distribution.
knn.reg                 k-NN regression with Euclidean or
                        (hyper-)spherical response and or predictor
                        variables
knnreg.tune             Tuning of the k-NN regression with Euclidean or
                        (hyper-)spherical response and or predictor
                        variables
kuiper                  Uniformity tests for circular data.
lambert                 Lambert's equal area projection
lambert.inv             Inverse of Lambert's equal area projection
matrixfisher.mle        Mle of the Matrix Fisher distribution on SO(3)
meandir.test            Test for a given mean direction.
mediandir               Spherical and hyperspherical median.
mediandir_2             Fast calculation of the spherical and
                        hyperspherical median.
mix.vmf                 Mixtures of Von Mises-Fisher distributions.
mixvmf.contour          Contour plot of a mixture of von Mises-Fisher
                        distributions model for spherical data only.
pvm                     Probability density function of the von
                        Mises-Fisher distribution
quat2rot                Converting an unsigned unit quaternion to
                        rotation matrix on SO(3)
rayleigh                Rayleigh's test of uniformity
rbingham                Simulation from a Bingham distribution using
                        any symmetric matrix A
rfb                     Simulation of random values from a spherical
                        Fisher-Bingham distribution
rkent                   Simulation of random values from a spherical
                        Kent distribution
rmatrixfisher           Simulation from a Matrix Fisher distribution on
                        SO(3)
rmixvmf                 Random values simulation from a mixture of von
                        Mises-Fisher distributions
rot.matrix              Rotation matrix from a rotation axis and angle
                        of rotation
rot2quat                Converting a rotation matrix on SO(3) to an
                        unsigned unit quaternion
rotation                Rotation matrix to rotate a spherical vector
                        along the direction of another
rsop                    Random sample of matrices in SO(p)
rvmf                    Random values simulation from a von
                        Mises-Fisher distribution
rvonmises               Random values simulation from a von
                        Mises-Fisher distribution
spher.cor               Spherical-spherical correlation.
spher.reg               Spherical-Spherical regression
spherconc.test          Test for equality of concentration parameters
                        for spherical data
spml.reg                Circular or angular regression
tang.conc               A test for testing the equality of the
                        concentration parameter among g samples, where
                        g >= 2 for ciruclar data
vec                     Unit vector(s) with a given angle
vm.kde                  Kernel density estimation of circular data with
                        a von Mises kernel
vmf                     MLe of the parameters of a von Mises-Fisher
                        distribution
vmf.contour             Contour plots of the von Mises-Fisher
                        distribution on the sphere
vmf.da                  Cross validation for estimating the
                        classification rate of a discrminant analysis
                        for directional data assuming a von
                        Mises-Fisher distribution
vmf.kde                 Kernel density estimation for (hyper-)spherical
                        data using a von Mises-Fisher kernel
vmf.kerncontour         Contour plot of spherical data using a von
                        Mises-Fisher kernel density estimate
vmfda.pred              Prediction of a new observation using
                        discriminant analysis based on von Mises-Fisher
                        distributions
vmfkde.tune             Fast tuning of the bandwidth parameter in the
                        von Mises-Fisher kernel for (hyper-)spherical
                        data with an optimizer
vmkde.tune              Fast tuning of the bandwidth parameter in the
                        von Mises kernel for circular data
wood.mle                MLe of the Wood bimodal distribution on the
                        sphere.
