This repository contains materials associated with the lightning talk given at the Boston useR Group meetup on October 20, 2020.
The file intro.R provides examples of the R functions discussed in the lightning talk.
This code in this talk utilizes two unique packages, the fs package and the DBI package:
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The fs package is used to interface with the file system (create directories, move files, etc.). Though R has base functions that do a lot of this (
dir.create(),file.copy(), etc.), a list of reasons why fs functions are a safer choice can be found here. -
The DBI package is used to interface with database management systems, such as Postgres, SQL Server, SQLite, etc. In this talk, we will showcase how to send SQL statements to a SQLite database via the functions in this package.
The talk begins by demonstrating moving around the file system with both base R and the fs package. The intro.R script demonstrates how to write a dataframe to a delimited file, remove files from a directory, copying a file from one directory to another, and renaming files. At the end of the script, a SQLite database (and database table) are created.
The second part of the talk showcases how to use the DBI package to write data to a SQLite database. A Shiny app was created to demonstrate how a user's manual input, as well as a user's characteristics (using R environmental variables garnered from the Sys.getenv() base R function) can be captured within a Shiny app and written to a SQLite database with -- literally -- the "click of a button!".