Tag Archives: Data Science

Life Expectancy by Country

By: Ivan Kuznetsov

Re-posted from: https://www.ivankuznetsov.com/2016/08/life-expectancy-by-country.html

Life Expectancy by CountryI was inspired by Andrew Collier’s blog post Life Expectancy by Country where he illustrated how to create a bubble chart that compares female and male life expectancies for a number of countries based on the data scraped from Wikipedia using R and Plot.ly charts.

I decided to replicate these results using another popular language for technical computing – Julia.

Scraping Wikipedia in Julia proved to be less elegant, as it is missing a convenient package for ingesting tabular data from web pages into data frames, but otherwise it was a relatively simple task.

The dotted line in the chart corresponds to equal female and male life expectancy. The size of the bubbles is linearly proportional to country population.

Interactive plot is available on Plot.ly.

View the code on Gist.

 

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JuliaCon 2015: Everyday Analytics and Visualization (video)

By: randyzwitch - Articles

Re-posted from: http://randyzwitch.com/juliacon-2015-everyday-analytics-and-visualization-video/

At long last, here’s the video of my presentation from JuliaCon 2015, discussion common analytics tasks and visualization. This is really two talks, the first being an example of using the citibike NYC API to analyze ridership of their public bike program, and the second a discussion of the Vega.jl package.

Speaking at JuliaCon 2015 at MIT CSAIL is the professional highlight of my year; hopefully even more of you will attend next year.

Enjoy!

Edit: For those of you who would like to follow-along using the actual presentation code, it is available on GitHub.

This is why we can’t have nice things

I had a university criminal law lecturer, way back in the day, who had an expression called ‘self-organising stupid’. Self-organising stupid is why otherwise sane people suddenly start doing crazy things, until the crazy becomes so prevalent that everybody will do crazy things for no other reason but to keep up. This is how riots, […]