Bowman, Adrian, Ewan Crawford, Gavin Alexander, and Richard W Bowman. “Rpanel: Simple Interactive Controls for R Functions Using the Tcltk Package”. Journal of Statistical Software 17, no. 9 (January 1, 2007): 1–18. Accessed April 23, 2024. https://www.jstatsoft.org/index.php/jss/article/view/v017i09.