I’ve been through dozens and dozens of notebooks in my lifetime—starting with my first summer camp journal at age eight, when my deepest thoughts were mostly about friendship drama and our trip day to ...

Perhaps you're a prolific notetaker, you regularly share your workings with teammates, you're liable to lose your notes, or you just like investing in useful tech. If that's you, this guide to the ...

Although there are many functions in the base package of R, sometimes there may not be a function that does exactly what you want. In this case, R allows users to create their own functions and call ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. David Kindness is a Certified Public ...