I am enjoying reading this book, authored by A Ohri. I like the short interviews of people like Hadley Wickam author of ggplot2, ch 5.10 and James Dixon founder of Pentaho, ch 184.108.40.206.
We discussed Pentaho at a recent Quantified Self Meet-up. After learning about Pentaho, I was pleased to find a section on in this book.
Along with how to work with R and every current database, cloud service, api’s and json there is a section on postgreSQL my favorite database.
After reading this book I feel more confident about getting data into R.
The amount of information about graphics cover just about everything. Chapter 5 has code for pie charts and Venn diagrams, even code for a word cloud.
Chapter 6 Building Regression Models covers multicollinearity and hetroscedasticity. Something that I don’t think is talked about often.
Note about the code in this book he uses = as the assignment operator not <-