Basic R programming
There are many applications to mathematical and statistical methods in economics; some examples are Time Series econometrics and Input-Output Analysis. R is a programming language that has many mathematical and statistical applications. Therefore, said programming language can be used for many economic research projects. However, before discussing and learning to code in projects of an economic nature, it is necessary to review or learn to code from the most fundamental (and basic) aspects. These basic codes are available on my GitHub site.