correct_per             Function to smooth the raw wavelet periodogram
form_lacv_forward       Function to form the local autocovariance array
                        for the forecasting / backcasting step.
haarWT                  Function to apply the (univariate) Haar wavelet
                        transform
mvLSWimpute-package     Imputation Methods for Multivariate Locally
                        Stationary Time Series
mv_impute               Function to apply the mvLSWimpute method and
                        impute missing values in a multivariate locally
                        stationary time series
pdef                    Function to regularise the LWS matrix.
pred_eq_forward         Function to form the prediction equations for
                        the forecasting / backcasting step.
smooth_per              Function to smooth the raw wavelet periodogram
                        using the default 'mvLSW' routine.
spec_estimation         Function to estimate the Local Wavelet Spectral
                        matrix for a multivariate locally stationary
                        time series containing missing values
