Recently, I attended a presentation where the following graph was shown illustrating the response to stimulation with Thalidomide among a cohort of HIV-1 patients. The biomarker used to measure the response in this case was TNF (tumor necrosis factor) and … Continue reading →

Outline of the Problem When learning to program, we often start with trivial exercises that don’t motivate anyone to treat programming seriously. Here I want to develop an example step-by-step that will illustrate key concepts of programming in R and … Continue reading →

While dealing with a small problem in which I needed a list of odd numbers, I remembered a shortcut that I’ve used for more than 30 years to reduce the typing and complication of logical tests — the “if…then” construct. … Continue reading →

This week I’ve been looking at two models in R that are attempting to predict whether Giancarlo Stanton would break Roger Maris’ mark of 61 home runs in a season. I’ve not been counting Barry Bond’s official record of 73 … Continue reading →

Sometimes, events move faster than we predict them. This is one of the things that makes  statistics as much of an art as a science. Last night, Giancarlo Stanton hit not 1 but 2 home runs. He is now tied … Continue reading →