A mathematical function is a formula that takes an input, x, applies a set of calculations to it, and produces an output called y. By calculating a function at a large number of set intervals, it is ...

What Is a Risk Graph? A risk graph, also known as a profit graph, is a two-dimensional graphical representation that displays the range of profit or loss possibilities for an options trade. A risk ...

The three most common open source technologies for writing data science programs are Python, SciLab, and R. Here's how to write program-defined functions in R. There's no clear definition of the term ...

There are lots of ways to share results of your R analysis: Word documents, interactive apps, even in the body of an email. But sometimes, you want a slide presentation. It’s easy to generate a ...