Cal.recon               Calculating reconstruction error
Crossprod               Crossproduct of vectors
Dist.pt                 The number of distinct points.
Earthquake              Earthquake
Expmap                  Exponential map
ExtrinsicMean           Finding Extrinsic Mean
GenerateCircle          Generating circle on sphere
IntrinsicMean           Finding Intrinsic Mean
Kernel.Gaussian         Gaussian kernel function
Kernel.indicator        Indicator kernel function
Kernel.quartic          Quartic kernel function
LPG                     Local principal geodesics
Logmap                  Logarithm map
PGA                     Principal geodesic analysis
PrincipalCircle         Principal circle on a sphere
Proj.Hauberg            Projecting the nearest point
Rotate                  Rotating point on a sphere
Rotate.inv              Rotating point on a sphere
SPC                     Spherical principal curves
SPC.Hauberg             principal curves by Hauberg on a sphere
Trans.Euclid            Transforming into Euclidean coordinate
Trans.sph               Transforming into spherical coordinate
