Random reference of the day: Vargas Sepúlveda, Mauricio. 2020. Leontief: Input-Output Analysis. https://CRAN.R-project.org/package=leontief.
I offer short courses for groups and individual personalized sessions at Buy Me a Coffee. I am a certified Tidyverse and Shiny instructor by RStudio and a Software Carpentry Instructor.
For consultancy services, please contact me at m.sepulveda@mail.utoronto.ca or send me a quote on Fiverr. I have experience in developing scalable Shiny applications for data visualization and data analysis, and these often included connecting to organizational SQL databases and rewriting existing code. I have also developed R packages for data manipulation and data visualization that combine efficient use of R vectorisation and C++ code to solve bottlenecks.