The running environment for generating this tutorial:
## R version 4.0.5 (2021-03-31)
## Platform: x86_64-pc-linux-gnu (64-bit)
## Running under: Red Hat Enterprise Linux 8.2 (Ootpa)
##
## Matrix products: default
## BLAS: /cm/shared/apps_chop/R/4.0.5/lib64/R/lib/libRblas.so
## LAPACK: /cm/shared/apps_chop/R/4.0.5/lib64/R/lib/libRlapack.so
##
## locale:
## [1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C
## [3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8
## [5] LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8
## [7] LC_PAPER=en_US.UTF-8 LC_NAME=C
## [9] LC_ADDRESS=C LC_TELEPHONE=C
## [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
##
## attached base packages:
## [1] stats graphics grDevices utils datasets methods base
##
## loaded via a namespace (and not attached):
## [1] digest_0.6.28 R6_2.5.1 jsonlite_1.7.2 magrittr_2.0.1
## [5] evaluate_0.14 stringi_1.7.5 rlang_0.4.12 jquerylib_0.1.3
## [9] bslib_0.2.4 rmarkdown_2.7 tools_4.0.5 stringr_1.4.0
## [13] xfun_0.22 yaml_2.2.1 fastmap_1.1.0 compiler_4.0.5
## [17] htmltools_0.5.2 knitr_1.32 sass_0.3.1