Chris Conlan

Data Scientist

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Download Price History for Every S&P 500 Stock with R

May 16, 2017 By Chris Conlan 28 Comments

Update #9: Quandl API is Deprecated According to an email I got from Quandl (and a few commenters corroborating), the Quandl EOD data API is no longer supported and is not providing data past March 27th. According to the CIO of Quandl, it was being provided for free by a 3rd party. That 3rd party […]

Filed Under: Automated Trading, Programming with R

TPM for Biologists: My Experience with a UVA Bio Lab

May 15, 2017 By Chris Conlan Leave a Comment

Gilmer Claire UVA Biology Department

This past spring, I offered my services to a biology lab at the University of Virginia. This lab was pushing the limits on a few fronts, including malaria diagnosis, cell imaging, and DNA processing. My job was to help the lead researchers understand advanced programming concepts, organize code, and administer servers. Setting Goals I first […]

Filed Under: Business Management, Chris Conlan Blog

Supporting Technical Books: Experiences and Ideas

May 11, 2017 By Chris Conlan Leave a Comment

A piece of a bookshelf in my den. Some of my favorite technical books.

Having a technical book on the shelves can make anyone anxious. Technical authors publish entire books that depend on open-source software, free APIs, and constantly changing data. In some ways, supporting a technical book is like maintaining a popular GitHub repository. When users find bugs, I attempt to address and remedy them. In some other […]

Filed Under: Business Management, Chris Conlan Blog

Stepping Into Data Science (Presentation & Photo Gallery)

April 22, 2017 By Chris Conlan Leave a Comment

We had great success last week presenting our new software for multivariate data visualization. I’d like to thank James Wang, Gretchen Martinet, and Jeff Holt of University of Virginia for making this presentation possible. Background James and I have a history of linking up to prototype cool tech products. We have very complimentary skill sets […]

Filed Under: 3D Technology and Virtual Reality, Chris Conlan Blog

Merging Data Science and Virtual Reality for Advanced Visualization

March 15, 2017 By Chris Conlan 1 Comment

It is an interesting time to be a data scientist. Tools, techniques, and expectations in different sub-genres are evolving asymmetrically. Most notably, I feel that visualization has lagged machine learning for quite a long time. I must clarify: While colorful corporation-friendly visualization platforms are thriving, technical visualization tools used by data scientists remain stagnate. By […]

Filed Under: 3D Technology and Virtual Reality

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Pulling All Sorts of Financial Data in Python [Updated for 2021]

Calculating Triple Barrier Labels from Advances in Financial Machine Learning

Calculating Financial Performance Metrics in Pandas

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