运行环境
## R version 4.2.3 (2023-03-15)
## Platform: x86_64-pc-linux-gnu (64-bit)
## Running under: Ubuntu 22.04.2 LTS
##
## Matrix products: default
## BLAS: /usr/lib/x86_64-linux-gnu/openblas-pthread/libblas.so.3
## LAPACK: /usr/lib/x86_64-linux-gnu/openblas-pthread/libopenblasp-r0.3.20.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
##
## other attached packages:
## [1] magrittr_2.0.3 data.table_1.14.8
##
## loaded via a namespace (and not attached):
## [1] knitr_1.42 sysfonts_0.8.8 tidyselect_1.2.0 R6_2.5.1
## [5] rlang_1.1.1 fastmap_1.1.1 fansi_1.0.4 dplyr_1.1.2
## [9] tools_4.2.3 broom_1.0.4 xfun_0.39 utf8_1.2.3
## [13] cli_3.6.1 withr_2.5.0 jquerylib_0.1.4 htmltools_0.5.5
## [17] yaml_2.3.7 digest_0.6.31 tibble_3.2.1 lifecycle_1.0.3
## [21] crayon_1.5.2 bookdown_0.34 purrr_1.0.1 tidyr_1.3.0
## [25] sass_0.4.6 vctrs_0.6.2 curl_5.0.0 glue_1.6.2
## [29] cachem_1.0.8 evaluate_0.21 rmarkdown_2.21 compiler_4.2.3
## [33] bslib_0.4.2 pillar_1.9.0 backports_1.4.1 generics_0.1.3
## [37] jsonlite_1.8.4 pkgconfig_2.0.3