arter Rscript run "pdf2svg Rplots.pdf maya_area_pdsi_july_1980-2020_1.svg" or somethingg like this, if you want svg image download and average in year and
Instead of ten digits like we have today, the Maya used a base number of 20. (Base 20 is vigesimal.) They also used a system of bar and dot as "shorthand"
org/licenses/by-sa/3.0CC BY-SA 3.0 Creative Commons Attribution-Share Alike 3.0 truetrue This image is a derivative work of the following images: File:Cacicazgos_mayas.jpg