Recent R learning overview and R learning Overview

Recent R learning overview and R learning Overview
I have been a little busy recently, and I am learning a little less. Previously, I learned the R language for a short period of time, mainly in R language practice. I read a part of it and practiced it a little bit. Due to the internal and external network isolation of the company, it is inconvenient to download and install pakage, in addition, work is tight and temporarily put on hold. To tell the truth, the R language is quite good, that is, there is little community information, and it depends mainly on your own exploration. For example, I tried it before connecting to the database and failed to stick to it. Now we have started again. Just try connecting to oracle through ojdbc. Next we need to try rodbc to connect to the database. Come on.