Introduction Samuel Langhorne Clemens, otherwise known as Mark Twain, is one of the most important American writers.”The Adventures of Tom Sawyer” is probably one of my most favorite books in all English literature. Happy to see that Twain’...

In our previous portfolio volatility work, we covered how to import stock prices, convert to returns and set weights, calculate portfolio volatility, and calculate rolling portfolio volatility. Now we want to break that total portfolio volatility into its constituent parts and investigate how each asset contributes to the volatility. Why ...

I’m Shirin, a biologist turned bioinformatician turned data scientist. I’m especially interested in machine learning and data visualization. While I am using R most every day at work, I wanted to have an incentive to regularly explore other types of analyses and other types of data that I ...

Some sectors favour SMEs more than others. Large suppliers and SMEs must co-exist to bring the best of both worlds to buyers on G-Cloud. The post Is the Government realising its ambition for SMEs on G-Cloud? appeared first on thinkr.

It’s been a long time coming but I finally moved my blog from Jekyll/Bootstrap on Github pages to blogdown, Hugo and Netlify! Moreover, I also now have my own domain name www.shirin-glander.de. :-) I followed the blogdown ebook to set up my blog. I chose Thibaud ...

Inspired by a free online course titled Complier Average Causal Effects (CACE) Analysis and taught by Booil Jo and Elizabeth Stuart (through Johns Hopkins University), I’ve decided to explore the topic a little bit. My goal here isn’t to explain CACE analysis in extensive detail (you should definitely ...

What happened? A magnitude 8.1 earthquake was measured in the Pacific region offshore Chiapas, Mexico at 04:49:21 UTC on September 8th 2017. Working in the Water Mission Area for the USGS, our Data Science Team was already hard at work polishing up water visualizations for the devastating Hurricane Harvey, as well as creating ...

Edward tufte keyNoTe Edward Tufte will be kicking off PLOTCON NYC this year with his keynote talk. Edward is a Professor Emeritus of Political Science, Statistics, and Computer Science at Yale University. He wrote, designed, and self-published 4 classic books on data visualization including, “The Visual Display of Quantitative Information.” The ...

Then felt I like some watcher of the skies  When a new planet swims into his ken;  Or like stout Cortez when with eagle eyes  He star’d at the Pacific—and all his men  Look’d at each other with a wild surmise—  Silent, upon a peak in Darien.    ...

The Open Source Routing Machine (OSRM) is a library for calculating routes, distances and travel times between spatial locations. It can be accessed via either an HTTP or C++ API. Since it’s open source you can also install locally, download appropriate map data and start making efficient travel calculations. ...