Add matrixStats

Author: egenn

.travis.yml

@@ -11,7 +11,7 @@ env:
     - _R_CHECK_FORCE_SUGGESTS_=FALSE
 
 before_install:
-  - R -e 'install.packages(c("remotes", "knitr", "rmarkdown", "fansi", "NMF", "flexclust", "pbapply", "mlbench", "ranger"))'
+  - R -e 'install.packages(c("remotes", "knitr", "rmarkdown", "fansi", "NMF", "flexclust", "pbapply", "matrixStats", "mlbench", "ranger"))'
 
 install:
   - R -e 'remotes::install_deps(dep = NA)'