1.1 Content

The book is structured in the following main parts:

1. R Basics
2. Data Visualizations

The part “R Basics” covers general data analysis tasks like data loading, wrangling and aggregation. Mostly this part deals with number juggling and table viewing.

“Numerical quantities focus on expected values, graphical summaries on unexpected values.” - John W. Tukey

Such so called “graphical summaries” are covered in the part “Data Visualizations” which brings the calculated numbers to life. Visualizations are good to identify patterns, changes over time, unusual readings, and relationships between variables. The presented code makes the creation of common and useful plots for energy and comfort data fast and easy. The recipes in this part will show you how to complete certain specific tasks. Examples are shown so that you can understand the basic principle and reproduce the analysis or visualization with your own data. Simply copy the code into your R-script, run it and if you like the visualization replace the sample data with your own.