we better not print...

                end

                %% save tCCAfilter matrix that was learned from resting state data.

                fprintf('hmrR_tCCA: run idx = %d. Generated and Saved tCCAfilter\n', runIdx)

                print_filter(tCCAfilter);

                save(filterFilename, '-ascii', 'tCCAfilter');

            case 'apply'

                % Load the filter for the iBlk data block

                fprintf('hmrR_tCCA: run idx = %d. Loading and Using tCCAfilter\n', runIdx)

                tCCAfilter = load(filterFilename,'-ascii');

                print_filter(tCCAfilter);

                % Temporal embedding and zscoring of auxiliary data

                aux_sigs = AUX;