6186 search results for "git"

Basic mapping and attribute joins in R

November 9, 2014
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Basic mapping and attribute joins in R

This post is based on the free and open source Creating-maps-in-R teaching resource for introducing R as a command-line GIS. R is well known as an language ideally suited for data processing, statistics and modelling. R has a number of spatial packages, allowing analyses that would require hundreds of lines of code in other languages to be implemented with...

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OpenCPU release 1.4.5: configurable webhooks

November 9, 2014
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OpenCPU release 1.4.5: configurable webhooks

OpenCPU 1.4.5 is a patch release that improves performance by taking advantage of latest versions of jsonlite, devtools, knitr, openssl, etc. Also new in this release is the option to pass build parameters for deploying on ocpu.io (or your own ...

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solar navigation

November 9, 2014
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solar navigation

Introduction Solar altitude is a function of time, longitude and latitude, and so it can be possible to infer location based on measuring altitude as a function of time. This form of solar navigation can be based on sunrise and sunset times, at least on non-equinox days. I have explored this for a school-based project I call “SkyView” involving light sensors and Arduino microcontrollers,...

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Using Markdown and Pandoc for Publication

November 9, 2014
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Using Markdown and Pandoc for PublicationThe other day I was involved in editing job, in which I was supposed to edit 18 articles written in Microsoft Word (doc/docx format) and convert them into pdf format (for printing into a book) and html format (for web publishing). Manuscripts written by people not proficient in doc(x) format are notorious...

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Spatial data extraction around buffered points in R

November 8, 2014
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Quantifying spatial data (e.g. land cover) around points can be done in a variety of ways, some of which require considerable amounts of patience, clicking around, and/or cash for a license. Here’s a bit of code that I cobbled together to quickly extract land cover data from the National Land Cover Database for buffered regions around points (e.g....

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Spatial data extraction around buffered points in R

November 8, 2014
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Quantifying spatial data (e.g. land cover) around points can be done in a variety of ways, some of which require considerable amounts of patience, clicking around, and/or cash for a license. Here’s a bit of code that I cobbled together to quickly extract land cover data from the National Land Cover Database for buffered regions around points (e.g. small...

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Another take on building a multi-lingual shiny app

November 8, 2014
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Another take on building a multi-lingual shiny app

I was reading this interesting post about how to build a multi-lingual Shiny app. I’m also building a multi-lingual Shiny app and came up with slightly different take on it. First, I don’t use a function for finding the translation, … Continue reading →

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F1 Championship Race, 2014 – Winning Combinations…

November 8, 2014
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F1 Championship Race, 2014 – Winning Combinations…

As we come up to the final two races of the 2014 Formula One season, the double points mechanism for the final race means that two drivers are still in with a shot at the Drivers’ Championship: Lewis Hamilton and Nico Rosberg. As James Allen describes in Hamilton closes in on world title: maths favour

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When to fly to get there on time? Six million flights analyzed.

November 6, 2014
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When to fly to get there on time? Six million flights analyzed.

We analyzed over six million flights to help you decide on the best time to travel to avoid delays. The post When to fly to get there on time? Six million flights analyzed. appeared first on Decision Science News.

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Evaluating BreakoutDetection

November 6, 2014
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Evaluating BreakoutDetection

A couple of weeks ago, Twitter open-sourced their BreakoutDetection package for R, a package designed to determine shifts in time-series data. The Twitter announcement does a great job of explaining the main technique for detection (E-Divisive with Medians), so I won’t rehash that material here. Rather, I wanted to see how this package works relative

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