@article{JSSv019c01, title={Auxilary Cartographic Functions in R: North Arrow, Scale Bar, and Label with Leader Arrow}, volume={19}, url={https://www.jstatsoft.org/index.php/jss/article/view/v019c01}, doi={10.18637/jss.v019.c01}, abstract={Auxiliary cartographic components such as a scale bar, a north arrow, and labels frequently play an important role in faciliating the use of maps. Since the current R environment does not fully support these tools, we developed a scale bar for a projected map, a north arrow, and interactive text labeling with a leader arrow. The functionalities of the developed codes and noteworthy points during the execution of these functions are discussed. }, number={1}, journal={Journal of Statistical Software, Code Snippets}, author={Tanimura, Susumu and Kuroiwa, Chusi and Mizota, Tsutomu}, year={2007}, pages={1–8} }