Angelos Tzelepis

Data. Localization. Technology. Fun.

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Mass Shootings 2016

March 10, 2016 Angelos Tzelepis Leave a Comment

Mass Shootings 2016

Came across the Gun Violence Archives and had to quickly throw the data at Tableau. This is just the mass shootings (defined as 4 or more victims), I don't have the full data set of all gun incidents in 2016. … [Read more...]

Data, Featured Data, Gun Violence

Learning D3js visualization

December 24, 2015 Angelos Tzelepis Leave a Comment

Learning D3js visualization

I've been threatening to figure out D3.js visualizations for a while now, and I finally got around to digging in. While there are a couple decent step-by-step tutorials available online, and the documentation at D3 itself is good, there is no good quick-start guide, so the first … [Read more...]

Data D3js, Data, dataviz

Beer? Numbers? Two of my favorite things!

December 9, 2015 Angelos Tzelepis 1 Comment

Beer? Numbers? Two of my favorite things!

While between projects at work, or when a project is at a pause, I'm keeping myself busy in Tableau, trying ideas and sharpening by data blending and calculation building skills. When you're just playing around you need a dataset, of course. I decided to switch things up and move … [Read more...]

Beer, Data Beer, Data

The inevitable follow-up: all-time pitching data

September 23, 2015 Angelos Tzelepis Leave a Comment

The inevitable follow-up: all-time pitching data

Of course I had to put this together after yesterday's post.   Saves account for the only perfect 80/20 distribution, but in general, historical pitching counting-stat data breaks down into quintiles conform to Pareto's ideas fairly neatly.* Again, it's all … [Read more...]

Data Baseball, Pareto charts, sabermetrics

A quick look at baseball stats and the Pareto Principle

September 22, 2015 Angelos Tzelepis Leave a Comment

A quick look at baseball stats and the Pareto Principle

While doing some BI work for a local client, I whipped up a Pareto chart of her YTD billings by client to show her how top-heavy she is, relying on too few clients for too high a percentage of her sales. Pretty standard thing to do with any data set to get a sense of what you're … [Read more...]

Data Baseball, Pareto charts, sabermetrics

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Who am I?

Business intelligence, data governance, visualization, localization, and content management. I also build websites and epubs.

Where am I?

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What have I done?

  • Beer (2)
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  • Data (6)
  • Featured (1)
  • Food (10)
  • Homebrew (6)
  • Localization (2)
  • Music (1)
  • Other Personal (3)
  • Other Professional (2)
  • Troy (2)

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