Thank you all for reading Spatially Challenged over the years. I started this blog at the beginning of grad school as a way to share GIS resources with friends and colleagues. It's since grown in both scope and audience, and I'm grateful for everyone who has supported my work over the last five years. I'm… Continue reading Personal update and plans for 2022
Author: matcham2.0
Inverse Distance Weighting and Kriging in R
I posted a few months ago about a new R package I wrote with Filipe Matias-- it's available for download on GitHub. Last week we extended the GitHub tutorial to include interpolation methods and raster visualization/mapping example code. Spatially Challenged readers have asked me to write tutorials on these techniques before, but I had been… Continue reading Inverse Distance Weighting and Kriging in R
Setting up in RStudio
Hey all-- quick post today just to share a great resource from Piping Hot Data. If you're a new RStudio user, I'd recommend checking out their article Introducing RStudio and R Markdown. RStudio has a 4 panel main screen and many custom display options that can be a little overwhelming at first. The GIFs from… Continue reading Setting up in RStudio
WI State Cartographer’s Office is Hiring!
Quick note to readers-- the WI State Cartographer's Office is hiring for a few different positions, including entry-level jobs like GIS Technician with flexible requirements for previous GIS experience. You can find the job postings here. While you're at the SCO website, I highly recommend checking out their data downloads and pre-made maps including some… Continue reading WI State Cartographer’s Office is Hiring!
2021 Year In Review
Hello Spatially Challenged readers! Thank you for being here! I just wanted to post a quick year-in-review to highlight some of the changes that happened on this blog over the last 12 months. This year I have written 16 blog posts on a broad range of topics, including learning, data visualization, and open data sets.… Continue reading 2021 Year In Review
EJSCREEN: a tool for visualizing Environmental Justice
This week I learned about a great tool from the US EPA called EJSCREEN, which allows users to visualize and download data related to environmental justice. The US has a long history of environmental racism, including building highways through predominantly black neighborhoods and using former factory sites for low-income housing. Pollution and increased noise exposure… Continue reading EJSCREEN: a tool for visualizing Environmental Justice
New R package released today: cleanRfield
This fall I developed an R package with Filipe Matias from North Dakota State University. It just got publicly released on Github earlier this evening, and I'd really love if you all check it out here: https://github.com/filipematias23/cleanRfield Some features I'm particularly excited about include the automatic and manual field boundary delineation. There's also example code… Continue reading New R package released today: cleanRfield
R Cheat Sheets: ggplot2- Updated Blog Post
Note: the below was originally written and published in November 2018. I edited the post for clarity and added a few notes on accessing some learning resources in R Studio itself, but you can still find the original here. This month I'm making lots of graphs in R and wanted to share some of the… Continue reading R Cheat Sheets: ggplot2- Updated Blog Post
Publicly Available Data Sets for Learning and Teaching
Whether you're learning basic coding in R or mastering the intricacies of mixed-model ANOVAs in SAS, it helps to have some data to practice with. I frequently make up small data sets for this blog based on random number sequences or subsets of other data I've collected, but when I need larger data sets these… Continue reading Publicly Available Data Sets for Learning and Teaching
R Tutorial by Hasse Walum and Desirée de Leon
I came across this truly delightful introduction to R and summary statistics tutorial while reminding myself how to write functions in R. I was impressed by how Teacups, Giraffes, & Statistics covers R basics with clarity and specificity while being incredibly endearing. This was the first place I've seen interactive R windows on websites, and… Continue reading R Tutorial by Hasse Walum and Desirée de Leon
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