Found the following HTML validation problems:
Arotation.html:19:1 (Arotation.Rd:3): Warning: <h2> attribute "id" has invalid value "Rotation axis and angle of rotation given a rotation matrix"
bic.mixvmf.html:19:1 (bic.mixvmf.Rd:3): Warning: <h2> attribute "id" has invalid value "BIC for the model based clustering using mixtures of von Mises-Fisher distributions"
circ.cor1.html:19:1 (circ.cor1.Rd:5): Warning: <h2> attribute "id" has invalid value "Circular correlations between two circular variables"
circ.cors1.html:19:1 (circ.cors1.Rd:4): Warning: <h2> attribute "id" has invalid value "Circular correlations between one and many circular variables"
circ.summary.html:19:1 (circ.summary.Rd:3): Warning: <h2> attribute "id" has invalid value "Summary statistics for circular data"
circlin.cor.html:19:1 (circlin.cor.Rd:3): Warning: <h2> attribute "id" has invalid value "Circular-linear correlation"
colspml.mle.html:19:1 (colspml.mle.Rd:4): Warning: <h2> attribute "id" has invalid value "Column-wise MLE of the angular Gaussian and the von Mises Fisher distributions"
colwatsons.html:19:1 (colwatsons.Rd:3): Warning: <h2> attribute "id" has invalid value "Column-wise uniformity Watson test for circular data"
conc.test.html:19:1 (conc.test.Rd:3): Warning: <h2> attribute "id" has invalid value "Test of equality of the concentration parameters for circular data"
cosap.html:19:1 (cosap.Rd:3): Warning: <h2> attribute "id" has invalid value "Conversion of cosines to azimuth and plunge"
cosnn.html:19:1 (cosnn.Rd:3): Warning: <h2> attribute "id" has invalid value "The k-nearest neighbours using the cosinus distance"
dirda.cv.html:19:1 (dirda.cv.Rd:3): Warning: <h2> attribute "id" has invalid value "Cross validation for estimating the classification rate"
dirknn.html:19:1 (dirknn.Rd:3): Warning: <h2> attribute "id" has invalid value "k-NN algorithm using the arc cosinus distance"
dirknn.tune.html:19:1 (dirknn.tune.Rd:3): Warning: <h2> attribute "id" has invalid value "Tuning of the k-NN algorithm using the arc cosinus distance"
dkent.html:19:1 (dkent.Rd:5): Warning: <h2> attribute "id" has invalid value "Density of the spherical Kent and ESAG distributions"
dvm.html:19:1 (dvm.Rd:9): Warning: <h2> attribute "id" has invalid value "Density of some circular distributions"
dvmf.html:19:1 (dvmf.Rd:5): Warning: <h2> attribute "id" has invalid value "Density of some (hyper-)spherical distributions"
esag.da.html:19:1 (esag.da.Rd:3): Warning: <h2> attribute "id" has invalid value "Cross validation with ESAG discrminant analysis"
esag.mle.html:19:1 (esag.mle.Rd:3): Warning: <h2> attribute "id" has invalid value "MLE of the ESAG distribution"
esagda.pred.html:19:1 (esagda.pred.Rd:3): Warning: <h2> attribute "id" has invalid value "Prediction in discriminant analysis based on ESAG distribution"
etoa.html:19:1 (etoa.Rd:4): Warning: <h2> attribute "id" has invalid value "Transform unit vectors to angular data"
euclid.html:19:1 (euclid.Rd:3): Warning: <h2> attribute "id" has invalid value "Euclidean transformation"
euclid.inv.html:19:1 (euclid.inv.Rd:3): Warning: <h2> attribute "id" has invalid value "Inverse of the Euclidean transformation"
eul2rot.html:19:1 (eul2rot.Rd:4): Warning: <h2> attribute "id" has invalid value "Rotation matrix on SO(3) from three Euler angles"
f.rbing.html:19:1 (f.rbing.Rd:3): Warning: <h2> attribute "id" has invalid value "Simulation of random values from a Bingham distribution"
fb.saddle.html:19:1 (fb.saddle.Rd:3): Warning: <h2> attribute "id" has invalid value "Saddlepoint approximations of the Fisher-Bingham distributions"
fishkent.html:19:1 (fishkent.Rd:3): Warning: <h2> attribute "id" has invalid value "Hypothesis test for von Mises-Fisher distribution over Kent distribution"
group.gof.html:19:1 (group.gof.Rd:3): Warning: <h2> attribute "id" has invalid value "Goodness of fit test for grouped data"
group.vm.html:19:1 (group.vm.Rd:3): Warning: <h2> attribute "id" has invalid value "Summary statistics for grouped circular data"
habeck.rot.html:19:1 (habeck.rot.Rd:3): Warning: <h2> attribute "generation'" lacks value
habeck.rot.html:19:1 (habeck.rot.Rd:3): Warning: <h2> proprietary attribute "s"
habeck.rot.html:19:1 (habeck.rot.Rd:3): Warning: <h2> proprietary attribute "rotation"
habeck.rot.html:19:1 (habeck.rot.Rd:3): Warning: <h2> proprietary attribute "matrix"
haversine.dist.html:19:1 (haversine.dist.Rd:3): Warning: <h2> attribute "id" has invalid value "Haversine distance matrix"
hcf.aov.html:19:1 (hcf.aov.Rd:8): Warning: <h2> attribute "id" has invalid value "Anova for (hyper-)spherical data"
hcf.boot.html:19:1 (hcf.boot.Rd:8): Warning: <h2> attribute "id" has invalid value "Bootstrap 2-sample mean test for (hyper-)spherical data"
hcf.circaov.html:19:1 (hcf.circaov.Rd:8): Warning: <h2> attribute "id" has invalid value "Anova for circular data"
hcf.perm.html:19:1 (hcf.perm.Rd:8): Warning: <h2> attribute "id" has invalid value "Permutation based 2-sample mean test for (hyper-)spherical data"
hcfcirc.boot.html:19:1 (hcfcirc.boot.Rd:8): Warning: <h2> attribute "id" has invalid value "Bootstrap 2-sample mean test for circular data"
hcfcirc.perm.html:19:1 (hcfcirc.perm.Rd:8): Warning: <h2> attribute "id" has invalid value "Permutation based 2-sample mean test for circular data"
iag.reg.html:19:1 (iag.reg.Rd:4): Warning: <h2> attribute "id" has invalid value "Spherical regression using the projected normal or the von Mises-Fisher distribution"
iagesag.html:19:1 (iagesag.Rd:3): Warning: <h2> attribute "id" has invalid value "Hypothesis test for IAG distribution over the ESAG distribution"
kent.contour.html:19:1 (kent.contour.Rd:3): Warning: <h2> attribute "id" has invalid value "Contour plot of the Kent distribution without any data"
kent.datacontour.html:19:1 (kent.datacontour.Rd:3): Warning: <h2> attribute "id" has invalid value "Contour plot of the Kent distribution for some data"
kent.logcon.html:19:1 (kent.logcon.Rd:3): Warning: <h2> attribute "id" has invalid value "Logarithm of the Kent distribution normalizing constant"
kent.mle.html:19:1 (kent.mle.Rd:3): Warning: <h2> attribute "id" has invalid value "MLE of the Kent distribution"
knn.reg.html:19:1 (knn.reg.Rd:4): Warning: <h2> attribute "id" has invalid value "k-NN regression"
knnreg.tune.html:19:1 (knnreg.tune.Rd:3): Warning: <h2> attribute "id" has invalid value "Tuning of the k-NN regression"
kuiper.html:19:1 (kuiper.Rd:5): Warning: <h2> attribute "id" has invalid value "Uniformity test for circular data"
lambert.html:19:1 (lambert.Rd:3): Warning: <h2> attribute "projection'" lacks value
lambert.html:19:1 (lambert.Rd:3): Warning: <h2> proprietary attribute "s"
lambert.html:19:1 (lambert.Rd:3): Warning: <h2> proprietary attribute "equal"
lambert.html:19:1 (lambert.Rd:3): Warning: <h2> proprietary attribute "area"
lambert.inv.html:19:1 (lambert.inv.Rd:3): Warning: <h2> attribute "projection'" lacks value
lambert.inv.html:19:1 (lambert.inv.Rd:3): Warning: <h2> attribute "id" has invalid value "Inverse of Lambert"
lambert.inv.html:19:1 (lambert.inv.Rd:3): Warning: <h2> proprietary attribute "s"
lambert.inv.html:19:1 (lambert.inv.Rd:3): Warning: <h2> proprietary attribute "equal"
lambert.inv.html:19:1 (lambert.inv.Rd:3): Warning: <h2> proprietary attribute "area"
makefolds.html:19:1 (makefolds.Rd:3): Warning: <h2> attribute "id" has invalid value "Generate random folds for cross-validation"
matrixfisher.mle.html:19:1 (matrixfisher.mle.Rd:3): Warning: <h2> attribute "id" has invalid value "MLE of the Matrix Fisher distribution on SO(3)"
meandir.test.html:19:1 (meandir.test.Rd:3): Warning: <h2> attribute "id" has invalid value "Test for a given mean direction"
mediandir.html:19:1 (mediandir.Rd:4): Warning: <h2> attribute "id" has invalid value "Spherical and hyperspherical median"
mixvmf.contour.html:19:1 (mixvmf.contour.Rd:3): Warning: <h2> attribute "id" has invalid value "Contour plot of a mixture of von Mises-Fisher distributions model"
mixvmf.mle.html:19:1 (mixvmf.mle.Rd:3): Warning: <h2> attribute "id" has invalid value "Mixtures of Von Mises-Fisher distributions"
multivm.mle.html:19:1 (multivm.mle.Rd:5): Warning: <h2> attribute "id" has invalid value "MLE of some circular distributions with multiple samples"
nsmedian.html:19:1 (nsmedian.Rd:3): Warning: <h2> attribute "id" has invalid value "Normalised spatial median for directional data"
oceania.html:19:1 (oceania.Rd:9): Warning: <h2> attribute "id" has invalid value "Maps of the world and the continents"
purka.mle.html:19:1 (purka.mle.Rd:4): Warning: <h2> attribute "id" has invalid value "MLE of the Purkayashta distribution"
pvm.html:19:1 (pvm.Rd:3): Warning: <h2> attribute "id" has invalid value "Probability density function of the von Mises-Fisher distribution"
quat2rot.html:19:1 (quat2rot.Rd:3): Warning: <h2> attribute "id" has invalid value "Converting an unsigned unit quaternion to rotation matrix on SO(3)"
racg.html:19:1 (racg.Rd:3): Warning: <h2> attribute "id" has invalid value "Angular central Gaussian random values simulation"
rayleigh.html:19:1 (rayleigh.Rd:3): Warning: <h2> attribute "uniformity'" lacks value
rayleigh.html:19:1 (rayleigh.Rd:3): Warning: <h2> proprietary attribute "s"
rayleigh.html:19:1 (rayleigh.Rd:3): Warning: <h2> proprietary attribute "test"
rayleigh.html:19:1 (rayleigh.Rd:3): Warning: <h2> proprietary attribute "of"
rbingham.html:19:1 (rbingham.Rd:3): Warning: <h2> attribute "id" has invalid value "Simulation from a Bingham distribution using any symmetric matrix A"
read.fbm.html:19:1 (read.fbm.Rd:3): Warning: <h2> attribute "id" has invalid value "Read a file as a Filebacked Big Matrix"
resag.html:19:1 (resag.Rd:3): Warning: <h2> attribute "id" has invalid value "Simulation of random values from the ESAG distribution"
rfb.html:19:1 (rfb.Rd:3): Warning: <h2> attribute "id" has invalid value "Simulation of random values from a spherical Fisher-Bingham distribution"
rkent.html:19:1 (rkent.Rd:3): Warning: <h2> attribute "id" has invalid value "Simulation of random values from a spherical Kent distribution"
rmatrixfisher.html:19:1 (rmatrixfisher.Rd:3): Warning: <h2> attribute "id" has invalid value "Simulation from a Matrix Fisher distribution on SO(3)"
rmixvmf.html:19:1 (rmixvmf.Rd:3): Warning: <h2> attribute "id" has invalid value "Simulation of random values from a mixture of von Mises-Fisher distributions"
rot.matrix.html:19:1 (rot.matrix.Rd:3): Warning: <h2> attribute "id" has invalid value "Rotation matrix from a rotation axis and angle of rotation"
rot2eul.html:19:1 (rot2eul.Rd:3): Warning: <h2> attribute "id" has invalid value "Euler angles from a rotation matrix on SO(3)"
rot2quat.html:19:1 (rot2quat.Rd:3): Warning: <h2> attribute "id" has invalid value "Converting a rotation matrix on SO(3) to an unsigned unit quaternion"
rotation.html:19:1 (rotation.Rd:3): Warning: <h2> attribute "id" has invalid value "Rotation matrix to rotate a spherical vector along the direction of another"
rsop.html:19:1 (rsop.Rd:3): Warning: <h2> attribute "id" has invalid value "Random sample of matrices in SO(p)"
rvmf.html:19:1 (rvmf.Rd:4): Warning: <h2> attribute "id" has invalid value "Simulation of random values from rotationally symmetric distributions"
rvonmises.html:19:1 (rvonmises.Rd:6): Warning: <h2> attribute "id" has invalid value "Simulation of random values from some circular distributions"
spher.cor.html:19:1 (spher.cor.Rd:3): Warning: <h2> attribute "id" has invalid value "Spherical-spherical correlation"
spher.reg.html:19:1 (spher.reg.Rd:3): Warning: <h2> attribute "id" has invalid value "Spherical-spherical regression"
spherconc.test.html:19:1 (spherconc.test.Rd:3): Warning: <h2> attribute "id" has invalid value "Test for equality of concentration parameters for spherical data"
sphereplot.html:19:1 (sphereplot.Rd:3): Warning: <h2> attribute "id" has invalid value "Interactive 3D plot of spherical data"
spml.fbed.html:19:1 (spml.fbed.Rd:3): Warning: <h2> attribute "id" has invalid value "Forward Backward Early Dropping selection for circular data using the SPML regression"
spml.mle.html:19:1 (spml.mle.Rd:8): Warning: <h2> attribute "id" has invalid value "MLE of some circular distributions"
spml.reg.html:19:1 (spml.reg.Rd:3): Warning: <h2> attribute "id" has invalid value "Circular or angular regression"
spml.regs.html:19:1 (spml.regs.Rd:3): Warning: <h2> attribute "id" has invalid value "Many simple circular or angular regressions"
tang.conc.html:19:1 (tang.conc.Rd:3): Warning: <h2> attribute "id" has invalid value "A test for testing the equality of the concentration parameters for ciruclar data"
vec.html:19:1 (vec.Rd:3): Warning: <h2> attribute "id" has invalid value "Generation of unit vector(s) with a given angle"
visual.check.html:19:1 (visual.check.Rd:3): Warning: <h2> attribute "id" has invalid value "Check visually whether matrix Fisher samples is correctly generated or not"
vm.kde.html:19:1 (vm.kde.Rd:3): Warning: <h2> attribute "id" has invalid value "von Mises kernel density estimation"
vm.nb.html:19:1 (vm.nb.Rd:5): Warning: <h2> attribute "id" has invalid value "Naive Bayes classifiers for circular data"
vmf.contour.html:19:1 (vmf.contour.Rd:3): Warning: <h2> attribute "id" has invalid value "Contour plots of the von Mises-Fisher distribution"
vmf.da.html:19:1 (vmf.da.Rd:3): Warning: <h2> attribute "id" has invalid value "Cross validation in von Mises-Fisher discrminant analysis"
vmf.kde.html:19:1 (vmf.kde.Rd:3): Warning: <h2> attribute "id" has invalid value "von Mises-Fisher kernel density estimation for (hyper-)spherical data"
vmf.kerncontour.html:19:1 (vmf.kerncontour.Rd:3): Warning: <h2> attribute "id" has invalid value "Contour plot of spherical data using a von Mises-Fisher kernel density estimate"
vmf.mle.html:19:1 (vmf.mle.Rd:7): Warning: <h2> attribute "id" has invalid value "MLE of (hyper-)spherical distributions"
vmfda.pred.html:19:1 (vmfda.pred.Rd:3): Warning: <h2> attribute "id" has invalid value "Prediction in discriminant analysis based on von Mises-Fisher distribution"
vmfkde.tune.html:19:1 (vmfkde.tune.Rd:3): Warning: <h2> attribute "id" has invalid value "Tuning of the bandwidth parameter in the von Mises-Fisher kernel"
vmkde.tune.html:19:1 (vmkde.tune.Rd:3): Warning: <h2> attribute "id" has invalid value "Tuning of the bandwidth parameter in the von Mises kernel"
vmnb.pred.html:19:1 (vmnb.pred.Rd:5): Warning: <h2> attribute "id" has invalid value "Prediction with some naive Bayes classifiers for circular data"
wood.mle.html:19:1 (wood.mle.Rd:3): Warning: <h2> attribute "id" has invalid value "MLE of the Wood bimodal distribution on the sphere"