Newborn app using Twitter and R

BabySo you want to track your baby’s feedings and dirty diapers? Most digital solutions for newborn feeding trackers are either pricey or don’t make it easy for more than one person recording the feedings. I put together a convenient solution with minimal investment.

OAuth Explained

oauthWhat is OAuth? What is the purpose of it? How does it work? Example?

What is an exchangeability martingale?

Exchangeability martingales can be used to find strange or odd data points. The mechanics of exchangeability martingales is still a bit of a mystery to me. However, posted below are the basic components and how each step gets us to the desired result of an exchangeability martingale.

How to hang an IKEA mirror (Stockholm)

IKEA Stockholm mirror

The IKEA Stockholm mirror has 2 little eyelets on the back off to the left and right. One way to hang the mirror is to measure the distance between the eyelets and put nails/screws precisely lined up with the eyelets. This seems like a recipe for lots of mistakes. I found another solution.

R set working directory using copy and paste

After using Windows Explorer to navigate to a directory, I just want to copy and paste the directory in R, but I get this error:

> setwd("C:\Program Files")
Error: 'P' is an unrecognized escape in character string starting ""C:\P"

I used the setwd() function and pasted the directory, but there is an answer!

3 I’s of data-driven engineering

Where do I get started with data-driven engineering? How can the 3 I’s of data-driven engineering help me get off to a running start? How can I avoid the common pitfalls of data-driven engineering?