You can access the tutorial codes at https://github.com/meltemod/tutorials.
Oct 26. Introduction to Social Network Analysis: Data Structures for igraph package.
June 2. Collecting from American Community Survey using tidycensus package.
June 2. Find geolocations of US cities (web scraping and Google API tutorial).
June 2. Organizing large number of tweets collected using rtweets package.
Sep 24. Making a calendar in R.