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Game of Thrones as a Data Visualization
I came to know about Tableau a year back when I saw Adam McCann’s amazing viz. on GOT. Ever since then, I have been intrigued by the possibilities of Data Visualization. So creating this GOT viz. in Tableau one year from then is like coming a... Read more
Bundle Buddy
When building a complex JavaScript application, it is common to minify code and bundle files together to optimize network requests so the app loads faster. A common pattern for complex and large applications is code splitting. Typically this breaks up the bundles by each route in... Read more
Visualising Similarity: Maps vs. Graphs
The visualization of complex data sets is of essential importance in communicating your data products. Beyond pie charts, histograms, line graphs and other common forms of visual communication begins the reign of data sets that encompass too much information to be easily captured by these simple... Read more
Everybody’s favorite show about bloody power struggles and dragons, Game of Thrones, is back for its seventh season. And since we’re such big GoT fans here, we just had to do a project on analyzing data from the hit HBO show. You might not expect it,... Read more
In April, I gave a talk at d3.bayarea(). Here’s an adaptation of that talk as an introduction to d3.annotation(). LIBRARY BASICS I started this library by gathering examples of annotations that I liked. From those examples, the majority of use cases followed a pattern: a subject(the thing the annotation... Read more
Scraping OpenStreetMap and exploring POI in Cloudant and Jupyter Notebooks When working with data, the format of the raw data is not always user-friendly. For instance, the format could be one large binary file, or the data could spread across hundreds of text files. An easy... Read more
Tutorial: Visualizing Machine Learning Models
One of the big issues I’ve encountered in my teaching is explaining how to evaluate the performance of machine learning models.  Simply put, it is relatively trivial to generate the various performance metrics–accuracy, precision, recall, etc–if you wanted to visualize any of these metrics, there wasn’t... Read more
WHO Tuberculosis Data & ggplot2
So it has been a while since my previous post on some data taken from the UNHCR database. This post we’ll bring it back to the topic of infectious diseases (check out my other posts on the SIR model and MRSA typing). For this post, as similar to previous ones, I give... Read more
Farmer’s Markets
A series of data visualizations on Farmers’ Market data from data.gov. Dataset Properties Name Location (lat, long, city, state, address) Hours of operation Different goods categories and a yes/no if they’re available at that market UNDERSTANDING THE DATASET I made the following graphic to understand the distribution of... Read more
Popular Music Lyrics Have Become More Negative Over the Decades
This post is guest-written by Alex Lacey, a student at The Ohio State University. It was inspired by the ideas (and used some of the code) from this previous Big-Ish data post. Popular music is constantly evolving, and the changes it has undergone over the last few... Read more