O'Reilly 2015 Salary Survey for Data Scientists

Very interesting data compiled and analyzed by O'Reilly, using statistical models such as Lasso regression to predict salary based on different factors. It reminds me our own analysis based on simulated (but realistic) data, to assess whether having Python or R (or both) commands a bigger salary, and what is the extra boost provided by these skills, individually. The statistical model used was Jackknife regression, and it was designed for tutorial purposes. The O'Reilly survey is much bigger, based on real data, and it includes many factors, as well as factor selection. It uses standard statistical techniques which might be less robust than Jackknife regression.