Many have tried. Most have failed.Bradley Wiggins knows this. He also knows the ordeal he faces, knows the pain he will endure and knows the scrutiny he will face. It's nothing he hasn't experienced before, having raced and won the world's most pr...

Today I am happy to announce that I have migrated my blog from JustAnRBlog.wordpress.com to AriLamstein.com. I thought I would give an inside peek into the change in case others have an interest. Also, I would personally like to see more R packages and blogs, and I ...

Despite the hype around "big data", a more immediate problem facing many scientific analyses is that large-scale databases must be assembled from a collection of small independent and heterogeneous fragments -- the outputs of many and isolated scientific studies conducted around the globe. Collecting and compiling these fragments is challenging ...

Last week the commonmark package was released on CRAN. The package implements some very thin R bindings to John Macfarlane’s (author of pandoc) cmark library. From the cmark readme: cmark is the C reference implementation of CommonMark, a rationalized version of Markdown syntax with a spec. It provides a ...

High-dimensional Euclidean space is ℝ×ℝ×ℝ×ℝ×ℝ×…. Cartesian product of many continuous quantities. You are already familiar with the concept via “an arbitrary number of sliders” or “an arbitrary number of columns in a spreadsheet”. Pivot tables are the normal way business people navigate a low-dimensional subset of a high-dimensional space. One database ...