HR Analytics 101: Introduction to R Studio

Overview

• Practical beginners tour of the four panels in R Studio.
• Focus on analytics.

Opening R Studio

• Click on R Studio icon in taskbar.
• If not visible, search for "R Studio" in the search bar.

Four Panels in R Studio

1. Source Panel (Upper Left)

   • Write and save code scripts in a text file format.
   • Saved scripts allow recreation of analyses.

2. Console Panel (Lower Left)

   • Displays results of code from the source panel.
   • Allows direct execution of R code interactively.
   • Useful for checking results and data interaction.

3. Environment Panel (Upper Right)

   • Shows available variables in the current session.

4. Lower Right Panel

   • Contains tabs for Help, Packages, Plots, etc.
   • If source panel is absent, create a new script via File > New File > R Script.

Working with Panels

• Spend most time in Source and Console panels.

Example: Creating Variables

1. Create a new script file.

   • Assign variable x to values 1 through 100.
   • Create variable y as the cumulative sum of x using cumsum function.

2. Saving Scripts

   • Save using File > Save or Ctrl + S.

3. Running Code

   • Highlight code and select Run Selected Lines or use Ctrl + Enter.
   • Results appear in Console panel.
   • Use head(y) to view the first six elements of y.
   • Create new variable z as the median of y in the Console.

Environment Panel Details

• Shows variables created, including z variable.
• Clear environment using the broom icon.
• Recreate variables by running the script again.

Lower Right Panel: Tabs Overview

1. Plots Tab

   • Displays results of plots created in the Source or Console panels.
   • Use arrow to navigate through previous plots.
   • Clear plots using the broom icon.

2. Help Tab

   • Access help for functions by typing ?function_name in the Console.
   • Example: ?print for help on the print function.

3. Packages Tab

   • Install new packages (e.g., psyc) through the install button.

Summary

• Four key panels in R Studio: Source, Console, Environment, and Lower Right.
• Use Source for scripting and Console for interactive analysis.
• Environment displays variable information, while Lower Right shows plots, packages, and help files.

Conclusion

• Overview of R Studio to prepare students for further tutorials at hranalytics101.com.
• Encouragement to explore additional resources.