cov.structure           Estimate cross-covariances of two stationary
                        multivariate time series
dpca                    Compute Dynamic Principal Components and
                        dynamic Karhunen Loeve extepansion
dpca.KLexpansion        Dynamic KL expansion
dpca.filters            Compute DPCA filter coefficients
dpca.scores             Obtain dynamic principal components scores
dpca.var                Proportion of variance explained
filter.process          Convolute (filter) a multivariate time series
                        using a time-domain filter
fourier.inverse         Coefficients of a discrete Fourier transform
fourier.transform       Computes the Fourier transformation of a filter
                        given as 'timedom' object
freqdom                 Create an object corresponding to a frequency
                        domain functional
freqdom-package         Frequency domain basde analysis: dynamic PCA
freqdom.eigen           Eigendecompose a frequency domain operator at
                        each frequency
is.freqdom              Checks if an object belongs to the class
                        freqdom
is.timedom              Checks if an object belongs to the class
                        timedom
rar                     Simulate a multivariate autoregressive time
                        series
rma                     Moving average process
spectral.density        Compute empirical spectral density
timedom                 Defines a linear filter
timedom.norms           Compute operator norms of elements of a filter
timedom.trunc           Choose lags of an object of class 'timedom'
