The methods presented in this paper provide an improved technique for fitting a continuous function to discontinuous step functions so often evolving from empirical studies such as estimation of ...

Wolfram Alpha may be a data geek's dream, but if you're not all that interested in its more obscure uses, here's one thing we could all use a little help with: step-by-step math calculations. Just ...

In developing quality-control procedures, a step-loss function has been used implicitly or explicitly to describe consumer perceptions about product quality. A quadratic loss function has been ...