R version 4.5.3 (2026-03-11)
Platform: aarch64-apple-darwin20
Running under: macOS Tahoe 26.5

Matrix products: default
BLAS:   /Library/Frameworks/R.framework/Versions/4.5-arm64/Resources/lib/libRblas.0.dylib 
LAPACK: /Library/Frameworks/R.framework/Versions/4.5-arm64/Resources/lib/libRlapack.dylib;  LAPACK version 3.12.1

locale:
[1] C.UTF-8/C.UTF-8/C.UTF-8/C/C.UTF-8/C.UTF-8

time zone: Asia/Tokyo
tzcode source: internal

attached base packages:
[1] grid      stats     graphics  grDevices utils     datasets  methods  
[8] base     

other attached packages:
[1] broom_1.0.12   tidyr_1.3.2    readr_2.2.0    dplyr_1.2.1    survey_4.5    
[6] survival_3.8-6 Matrix_1.7-4  

loaded via a namespace (and not attached):
 [1] crayon_1.5.3     vctrs_0.7.3      cli_3.6.6        rlang_1.2.0     
 [5] DBI_1.3.0        mitools_2.4      purrr_1.2.2      generics_0.1.4  
 [9] bit_4.6.0        glue_1.8.1       backports_1.5.1  hms_1.1.4       
[13] tibble_3.3.1     tzdb_0.5.0       lifecycle_1.0.5  compiler_4.5.3  
[17] Rcpp_1.1.1       pkgconfig_2.0.3  lattice_0.22-9   R6_2.6.1        
[21] tidyselect_1.2.1 parallel_4.5.3   vroom_1.7.1      pillar_1.11.1   
[25] splines_4.5.3    magrittr_2.0.5   bit64_4.8.0      withr_3.0.2     
[29] tools_4.5.3     
