- Computing speed is often an important factor in assessing a programing language. In this post, Nathan Lemoine uses R and Python to calculate the bootstrapped confidence intervals for simulated linear regressions, and compares the computation times.
- We all know, from elementary calculus, that π is the ratio of the circumference of a circle to its diameter, and e is the base of the natural logarithm. But do you know why both of these constants appear in the density function of a normal distribution?
- Everyone (hopefully) knows how to import Excel spreadsheets into R, but do you know how you can save your R results directly as an Excel spreadsheet, with column names?
- If your chance of getting a parking ticket in one hour is 80%, what is the probability you’ll get a ticket in half an hour?
- One of the problems with Big Data is that large datasets are often proprietary and not accessible to the public. Joseph Rickert put togther a collection of some really nice big datasets that you can use to practice your R skills. They are all yours to experiment with.
- I have two children. One is a boy born on a Tuesday. What is the probability I have two boys?
- The Man Who Invented Modern Probability – the life story of Andrei Kolmogorov, by Slava Gerovitch of MIT.
