Installing subversion 1.7.10 on OSX Yosemite

You can’t call me a luddite any more — I finally started upgrading my mid-2010 MacBook Pro with 8GB of RAM to OSX 10.10 — Yosemite. Trickiest thing so far was installing an older version of Subversion. Here are my upgrade steps:   read more …

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MazamaSpatialUtils Package

Mazama Science has just released its first package on CRAN — MazamaSpatialUtils. Here is the description:

A suite of conversion scripts to create internally standardized spatial polygons dataframes. Utility scripts use these datasets to return values such as country, state, timezone, watershed, etc. associated with a set of longitude/latitude pairs. (They also make cool maps.)

In this post we discuss the reasons for creating this package and provide examples of its use.   read more …

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R Class for Wildfire Scientists

Mazama Science has just finished creating class materials on using R for the AirFire team at the USFS Pacific Wildland Fire Sciences Lab in Seattle, Washington. This team of scientists works on monitoring and modeling wildfire emissions, smoke and air quality. The AirFire team has granted permission to release these class materials to the public in the interest of encouraging scientists in other agencies to experiment with R for their daily work. A detailed syllabus follows.   read more …

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Population Databrowser

At Mazama Science we produce web based tools for interrogating important datasets. We are proud to announce the release of a new Population databrowser that allows users to review international population trends. We have done our best to make this release Open, Transparent and Reproducible by providing source code and data that enable readers to retrace our steps from raw data to final graphic.   read more …

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Using R — Working with Geospatial Data (and ggplot2)

This is a follow-up blog-post to an earlier introductory post by Steven Brey: Using R: Working with Geospatial Data. In this post, we’ll learn how to plot geospatial data in ggplot2. Why might we want to do this? Well, it’s really about your personal taste. Some people are willing to forfeit the fine-grained control of base graphics in exchange for the elegance of a ggplot. The choice is entirely yours.   read more …

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