Tag Archives: general law of the propagation of variances

Methods of Analyzing Data Part 3: Data Snooping & the tau Criterion

In previous articles, I discuss two rudimentary techniques that can be used to identify blunders in data. However, anyone who has used an advanced least squares adjustment package knows that such software often uses a post-adjustment statistic known as the tau criterion. The tau criterion is a modification of a method known as data snooping,...