Articles by Mitchell Gritts

Shiny Server on AWS

July 8, 2016 | Mitchell Gritts

The Shiny web framework for R is great, and one of my most frequently used packages. I’ve used it to develop exploratory data analysis and visualization tools for my coworkers. When I first started developing these apps I would send instructions to m... [Read more...]

re: Making Maps in R, volume 2: ggplot

July 2, 2016 | Mitchell Gritts

Jeremy Yoder wrote a wrote a post on The Molecular Ecologist about plotting location data in ggplot. It is a very informative post. However, I disagree with one (minor) aesthetic choice. The species in his figure have different colors and shapes. I am ... [Read more...]

Struggling with Non Standard Evaluation

June 16, 2016 | Mitchell Gritts

All the functions in dplyr (and many of the packages in the “hadleyverse”) use Non Standard Evaluation (NSE). NSE is extremely handy and generally reduces the amount of typing required. However functions that use NSE aren’t always intuitive to us... [Read more...]

A few of my favorite color palettes

June 11, 2016 | Mitchell Gritts

Good design is important. Don’t believe me, maybe you’ll like this TED radio hour episode. Good design is especially important in data visualization and data communication. Colors, scales, jitter, figure type are all decisions that need to be consi... [Read more...]

adehabitatHR visualization

May 13, 2016 | Mitchell Gritts

adehabitatHR is a must use package for spatial ecology analysis. I use it all the time to create home ranges and utilization distributions (and that is about it, I know there is a lot more that can be done). Many of the classes in adehabitatHR inherit ... [Read more...]

Home range estimation, MCP

April 2, 2016 | Mitchell Gritts

I’ve been spending a lot of time over the last several months thinking about animal home ranges, utilization distributions, and movement ecology. All this thinking has gone into a shiny application for the exploratory analysis and visualization of an... [Read more...]

rNDOW package

March 22, 2016 | Mitchell Gritts

Over the last few months I’ve been writing tons of R functions. They all go to GitHub, but they aren’t easily used in R. Each time I want to use one I have to use source(''). I finally decided it was time to write an ... [Read more...]

Wrapper functions for Leaflet in R

March 7, 2016 | Mitchell Gritts

Over the last several months I’ve been building a Shiny app for exploratory analysis and visualization of animal movement data. I want the app to be fully interactive so I decided to use leaflet over other mapping packages. Creating this application ... [Read more...]

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