fix bugs before cran release
diff --git a/R/kableExtra-package.R b/R/kableExtra-package.R
index 799dac1..48543e2 100644
--- a/R/kableExtra-package.R
+++ b/R/kableExtra-package.R
@@ -68,7 +68,7 @@
 #' @importFrom utils read.csv head capture.output
 #' @importFrom scales rescale
 #' @importFrom viridisLite viridis
-#' @importFrom stats ave density median
+#' @importFrom stats ave density median na.omit setNames
 #' @importFrom grDevices col2rgb svg png
 #' @importFrom rstudioapi isAvailable viewer
 #' @importFrom glue glue