With Both Hands

Sign in Subscribe

Stats

R Tip: Making a random distribution and then exporting it

I had a need for a text file with a random normal distribution in it today, so I looked around and found this tip from Paul Johnson's R page. table = rnorm(40, .1, .01) # assigns a random normal with 40 elements with mean .1 and SD .01 to

R Tips and Tricks

My practice with R has been slow of late, but I have put up some R snippets, mostly as a reminder to myself. Here are 5 sites that have R tips, tricks, and easy explanations. I find that the documentation linked on the R project website to be less than

Cycles: The Science of Prediction

Finally finished a review of Cycles, by Edward Dewey and Edwin Dakin. A fun little book on how to know whether a business is doing well or poorly using simple graphs. A book that deserves to be more widely read. It seems to have been popular in the past, but

Bisphenol A

I didn't bother to freak-out when the panic hit over the latest poison-du-jour, 2,2-BIS(4-HYDROXYPHENYL)PROPANE (bisphenol A). Statistical experience, plus the smattering of toxicology I have to know to do my job, has taught me to be cautious regarding chemical scares. This definitely turns out to

Narrower Atlantic

There is an absolutely fascinating article in Prospect about the relative disparities of the United States and Europe in terms of the many, many social statistics that are collected these days. The author makes the excellent point that if you consider the whole range of Europe, from Sweden to Greece,

The Scientific News Cycle

The Scientific News Cycle

The only way to make it more perfect would be to add a p-value. h/t Magistra Scientia and Michael Flynn

SAT Coaching Found to be Giant Waste of Money and Time

SAT Coaching Found to be Giant Waste of Money and Time

Is probably what the headline ought to have read. The Wall Street Journal has an article casting doubt upon the extravagant SAT score improvement claims offered by outfits such as Kaplans. I've always been a little dubious about the whole test prep enterprise, but using a harder test