# An Analysis Toolbox for Hermitian Positive Definite Matrices

## Documentation for package ‘pdSpecEst’ version 1.2.4

- DESCRIPTION file.
- User guides, package vignettes and other documentation.

## Help Pages

pdSpecEst-package | pdSpecEst: An Analysis Toolbox for Hermitian Positive Definite Matrices
Expm | Riemannian HPD exponential map
H.coeff | Orthonormal basis expansion of a Hermitian matrix
InvWavTransf1D | Inverse AI wavelet transform for curve of HPD matrices
InvWavTransf2D | Inverse AI wavelet transform for surface of HPD matrices
Logm | Riemannian HPD logarithmic map
Mid | Geodesic midpoint between HPD matrices
pdCART | Tree-structured trace thresholding of wavelet coefficients
pdDepth | Data depth for HPD matrices
pdDist | Compute distance between two HPD matrices
pdkMeans | K-means clustering for HPD matrices
pdMean | Weighted Karcher mean of HPD matrices
pdMedian | Weighted intrinsic median of HPD matrices
pdNeville | Polynomial interpolation of curves (1D) or surfaces (2D) of HPD matrices
pdParTrans | Riemannian HPD parallel transport
pdPgram | Multitaper HPD periodogram matrix
pdPgram2D | Multitaper HPD time-varying periodogram matrix
pdPolynomial | Generate intrinsic HPD polynomial curves
pdRankTests | Rank-based hypothesis tests for HPD matrices
pdSpecClust1D | Intrinsic wavelet HPD spectral matrix clustering
pdSpecClust2D | Intrinsic wavelet HPD time-varying spectral clustering
pdSpecEst | pdSpecEst: An Analysis Toolbox for Hermitian Positive Definite Matrices
pdSpecEst1D | Intrinsic wavelet HPD spectral estimation
pdSpecEst2D | Intrinsic wavelet HPD time-varying spectral estimation
pdSplineReg | Cubic smoothing spline regression for HPD matrices
rARMA | Simulate vARMA(2,2) time series
rExamples1D | Several example curves of HPD matrices
rExamples2D | Several example surfaces of HPD matrices
WavTransf1D | Forward AI wavelet transform for curve of HPD matrices
WavTransf2D | Forward AI wavelet transform for surface of HPD matrices