I just completed the Coursera Machine Learning class this week, and enjoyed the experience very much. Let’s get the obvious out of the way: getting a high-quality class, for free, wherever you are, at your own pace, is pretty amazing, and I can put up with a sometimes flaky video player for that. Every quarter in college, I would agonize over what limited number of classes I should take, thinking that I might not be able to take that class ever again once I graduated, and Coursera is awesome for that – now[...]

Yesterday’s New York Times has a good article on Google’s analysis of what works and what does not work when interviewing candidates for technical jobs. This paragraph closely matches my experience: Behavioral interviewing also works — where you’re not giving someone a hypothetical, but you’re starting with a question like, “Give me an example of a [...]

In the previous post, we derived a class from BubbleChart and this got us started on actually visualizing some meaningful data using bubbles. There are a couple of things to iron out before a visual can appear. Color Schemes I am using Cynthia Brewer color schemes, available for download in colorbrewer.css. This file is available […]

No matter how fast and vast your infrastructure, at some point you find that it’s not enough or it’s not …Continue reading →

Previously: Visualizing Crime with d3: Intro Data and Visualization In order to make a bubble chart in d3 (the one similar to the Obama Budget 2013), using CoffeeScript, you need to: Download a few files from my git hub (you’ll need coffee/BubbleChartSingle.coffee, css/visuals.css, css/colorbrewer.css) Define a class in a .coffee file: I also define a couple of […]