statistics you can probably trust

I gave a presentation on Buffon’s Needle Problem in a job interview once. Here’s the presentation I gave in PDF… Read more

I’m taking the Data Analysis class through Coursera and one of the topics we’ve covered so far is how to… Read more

I have started a new book called The Art of R Programming by Norman Matloff and I’m really digging it…. Read more

In the final chapter the authors introduce Support Vector Machines (SVM). What SVM do are generalize linear decision boundaries for… Read more

I recently purchased The Art of R Programming with a gift card I got for Christmas. Three pages into chapter… Read more

Are you a heavy Twitter user? Would you like to build a custom recommendation system in R that will recommend… Read more

k-nearest neighbors (kNN) is the topic of chapter 10. The authors say it’s the most intuitive of the machine learning… Read more

In this chapter we learn a little about Multidimensional Scaling, or MDS for short. Like PCA in Chapter 8, MDS… Read more

This is a tidy chapter on principle component analysis (PCA). There are many fine tutorials on PCA to be found… Read more

The title of this chapter, “Optimization: Breaking Codes”, sounds more exciting than it really is. The code breaking is attempted… Read more