I wish to create choropleth map in R (or any other program).
The map I want to use cannot be found, hence I must create one from scratch (will use photo of map from 1800s). This involves
1- Drawing boundaries 2. Naming boundaries 3. Giving numerical value to boundaries
So far, I found this (https://www.qgistutorials.com/en/docs/making_a_map.html), but it doesn't answer my question.
What do I google to find this?