1. Nathan Storey Guest Lecture

    Thu 10 October 2013
    cfarmer

    Nathan Storey will be speaking to my spatial data analysis class later today, October 10th, 2013, and you are invited to attend! Nathan is a former Hunter Urban Affairs student and current Open Data Guru working with Ontodia doing GIS/open data projects for NYC. Check out PediaCities, their platform to curate, organize, and link data about cities.

    This will be a great opportunity to see GIS data applied to real-world problem sets here in NYC. The discussion will go approx 1 hour, beginning at 5:35 in the large lab of Hunter College, CUNY, North Building, Room 1090B. Due to the location, no refreshments will be served, but its a good opportunity to feed your brain :)

    Here is what Nathan (the speaker) has to say about this talk:

    I will be speaking to Carson Farmer’s spatial data analysis class next week about open data in NYC, data discovery, and PediaCities, a data encyclopedia project I’ve been working on for the past 6 months.

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  2. Adding a bit of class(ification) to QGIS

    Wed 29 September 2010
    cfarmer

    In my last post, I implemented several classification algorithms for quantitative data which could be used directly from the Python console in QGIS. While this was a handy addition to my PyQGIS toolkit, it wasn’t quite handy enough for me, so I decided to (re)implement the same algorithms in C++ so that they could be added directly to the QGIS API. Before I did that however, I wanted to fix a few issues, and speed things up a bit, particularly for the Jenks Natural Breaks algorithm, which can be quite slow for large datasets.

    After porting everything over ...

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