References

Grolemund, Garrett, and Hadley Wickham. 2011. “Dates and Times Made Easy with Lubridate.” Journal of Statistical Software 40 (3). https://doi.org/10.18637/jss.v040.i03.

Henry, Lionel, and Hadley Wickham. 2020. “Purrr: Functional Programming Tools.”

Hester, Jim, Hadley Wickham, and Gábor Csárdi. 2021. “Fs: Cross-Platform File System Operations Based on ’Libuv’.”

Hester, Jim, Hadley Wickham, Romain François, Jukka Jylänki, and Mikkel Jørgensen. 2018. “Readr: Read Rectangular Text Data.”

Hester, Jim, Hadley Wickham, Jukka Jylänki, and Mikkel Jørgensen. 2020. “Vroom: Read and Write Rectangular Text Data Quickly.”

Müller, Kirill, Hadley Wickham, and Romain François. 2020. “Tibble: Simple Data Frames.”

R Core Team. 2021. R: A Language and Environment for Statistical Computing. Manual. Vienna, Austria: R Foundation for Statistical Computing.

Wickham, Hadley. 2010. “A Layered Grammar of Graphics.” Journal of Computational and Graphical Statistics 19 (1): 3–28. https://doi.org/10.1198/jcgs.2009.07098.

———. 2014. “Tidy Data.” Journal of Statistical Software 59 (10). https://doi.org/10.18637/jss.v059.i10.

———. 2020a. “Dplyr: A Grammar of Data Manipulation.”

———. 2020b. “Tidyr: Tidy Messy Data.”

———. 2022. “Forcats: Tools for Working with Categorical Variables (Factors).”

Wickham, Hadley, Mara Averick, Jennifer Bryan, Winston Chang, Lucy McGowan, Romain François, Garrett Grolemund, et al. 2019. “Welcome to the Tidyverse.” Journal of Open Source Software 4 (43): 1686. https://doi.org/10.21105/joss.01686.

Wickham, Hadley, Jennifer Bryan, Komarov Valery, Christophe Leitienne, Bob Colbert, David Hoerl, and Evan Miller. 2019. “Readxl: Read Excel Files.”

Wickham, Hadley, and Garrett Grolemund. 2016. R for Data Science: Import, Tidy, Transform, Visualize, and Model Data. First edition. Sebastopol, CA: O’Reilly.

Wickham, Hadley, and Evan Miller. 2020. “Haven: Import and Export ’SPSS’, ’Stata’ and ’SAS’ Files.”