→ Install additional R packages
RStudio IDE
http://www.rstudio.com/projects/
https://pairach.com/r-tutorials/
http://rseek.org/ R Google Search
# show list of data-objects: get all imported or created R variables/objects
"mydata" "samplenames"
# get current folder location: get actual location to read/write files (working directory)
"/home/myname"
# show content of current folder
"Desktop" "Downloads" "my_script.R"