#' @import methods
#' @importFrom MASS ginv Null
#'
#' @importFrom Matrix rowMeans colMeans rowSums colSums
#' @importFrom stats model.response model.weights rstandard rstudent residuals tsp
#' @importFrom forecast auto.arima Arima autoplot forecast
#' 
#' @importClassesFrom Matrix Matrix
#' @importFrom Matrix Matrix sparseMatrix
#' @importMethodsFrom Matrix t isSymmetric "%*%" solve diag

#' @importFrom stats as.formula coef delete.response family fitted
#'     formula ftable lm logLik median model.frame model.matrix pchisq pnorm
#'     pt qnorm qt residuals sd summary.lm terms vcov aggregate
#'     printCoefmat confint predict resid rstandard step update sigma
#'     
#' @importFrom modelr rmse

#' @importFrom microbenchmark microbenchmark
#' @importFrom Deriv Deriv
#' @importFrom utils str help
#' @importFrom methods setOldClass
#' @importFrom cowplot plot_grid
#' @importFrom rlang enquo
#' @importFrom tidyr pivot_longer
#' @importFrom dplyr mutate select
#' @importFrom tibble as_tibble
#' @importFrom broom tidy

NULL

