+#' @field .level Vector of measured levels
+#' @field .level_hat Vector of predicted levels
+#' @field .exo List of measured exogenous variables, cell = numerical vector.
+#' @field .exo_hat List of predicted exogenous variables, cell = numerical vector.
+#'
+#' @section Methods:
+#' \describe{
+#' \item{\code{getSize()}}{
+#' Number of series in dataset.}
+#' \item{\code{append(time, value, level_hat, exo, exo_hat)}}{
+#' Measured data for given vector of times + exogenous predictions from
+#' last midgnight.}
+#' \item{\code{getTime(index)}}{
+#' Times (vector) at specified index.}
+#' \item{\code{getSerie(index)}}{
+#' Serie (centered+level) at specified index.}
+#' \item{\code{getSeries(indices)}}{
+#' Series at specified indices (in columns).}
+#' \item{\code{getLevel(index)}}{
+#' Measured level at specified index.}
+#' \item{\code{getLevelHat(index)}}{
+#' Predicted level at specified index.}
+#' \item{\code{getCenteredSerie(index)}}{
+#' Centered serie at specified index.}
+#' \item{\code{getCenteredSeries(indices)}}{
+#' Centered series at specified indices (in columns).}
+#' \item{\code{getExo(index)}}{
+#' Measured exogenous variables at specified index.}
+#' \item{\code{getExoHat(index)}}{
+#' Predicted exogenous variables at specified index.}
+#' }
+#'
+#' @docType class
+#' @format R6 class