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Research blog

Fastest Distance Raster Method in R

4/2/2021

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By: Russell J Gray

Like most people, I have traditionally used the raster package function rasterize() and distance() to generate distance rasters (for example distance to river rasters). However, both of these functions take an incredibly long time, especially when dealing with large, high-resolution data. So here I present a workflow that will take seconds, rather than hours by creating a distance to river raster layer for the entire country of Pakistan as an example:


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Ecoregions Maps in R

10/14/2020

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South American ecoregions with a zoom out to Brazil
by Russell J. Gray
Ecoregions maps are simple in R, here is some reproducible code to make them yourself. You can download the newest version (2017) WWF ecoregion data  here

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A method for analyzing bird colony data using image processing techniques and point pattern analyses in R

5/26/2020

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A method for analyzing bird colonies using image processing techniques and point pattern analyses in R

5/26/2020

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A method for analyzing seabird nesting sites using image processing techniques and point pattern analyses in R

5/26/2020

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Analyzing nesting bird colonies using image processing and point pattern analyses in R

5/25/2020

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A method for analyzing seabird nesting colonies using image processing and point pattern analyses in R

5/25/2020

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May 24th, 2020

5/24/2020

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IMAGE PROCESSING WITH R AS AN EFFECTIVE METHOD OF COUNTING ANIMALS IN IMAGERY
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Want The Truth? Use R to Analyze nCoV Data

2/11/2020

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Are you tired of seeing mixed messages on social media regarding the novel coronavirus? Even if you aren't a programmer, you can use data science techniques to analyze the real data and get answers for yourself. In this article I will provide step by step instructions on how to do it.

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Bats, not snakes, the LIKELIEST cause of Wuhan coronavirus

1/23/2020

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