XIE, Y. animation: An R Package for Creating Animations and Demonstrating Statistical Methods. Journal of Statistical Software, [S. l.], v. 53, n. 1, p. 1–27, 2013. DOI: 10.18637/jss.v053.i01. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v053i01. Acesso em: 27 nov. 2021.