There are many packages to draw maps in R. Personally, I prefer to use leaflet and ggplot2. leaflet is a web application so that we can explore data interactively, and ggplot2 can merge data conveniently.
Basic concepts of EVT
Last time, we introduced the topic of Matrix Derivation. But we only discussed the situation when $f$ is a scalar. How about matrix $f$? The vectorization method is used in the derivation of matrix. Let’s start.