摘要：merica (USA) since their introduction in 1996 as an effective way to displaystatistical summaries associated with regional spatial units. However,LM plots were always hard to create by non–experts. The introduction ofthe micromap R package has simplified the construction of LM plots forarbitrary geographic regions by facilitating the use of external GeographicInformation System (GIS) features (such as shapefiles) as the basis for themaps. In this article, we will introduce LM plots for countries from SouthAmerica. However, spatial representations of features are often not immediately suitable for LM plots, even after some automated simplification of the boundaries of the map regions. A common problem is that relatively smallgeographic regions are often not visible when plotted in LM plots. Thus, itis necessary to enlarge small regions and display them on the outside of the main map. We introduce some algorithmic guidelines on how small regions can be addressed in LM plots for South America. Moreover, we will provide recommendations how to include areas into LM plots that are far away from the main geographic region.
