bivariatemaps: An R Package to Create Bivariate Maps and
Grid-Intersected Shapes Based on Area Coverage
Abstract
Bivariate maps have been published in studies since the 70s, but only in
the 2010s the method became more used by the general public, including
scientists from low-profit universities. Here I present my new R
package, bivariatemaps, capable of three things: making color matrices
with different quantile numbers, making a bivariate map from two rasters
and a color matrix, and making gridded shapefiles while excluding cells
based on area coverage. The package basically has three functions:
colmat, bivariate.map and GridFilter. I show the steps in order to
generate a bivariate map and show how this method can be used in the
most distinct scientific areas. The package is available in both Github
and CRAN (R repository) and is freely available and customizable by
anyone who wants to use it.