Author: matcham2.0

WI State Cartographer’s Office is Hiring!

matcham2.0Leave a comment

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!

EJSCREEN: a tool for visualizing Environmental Justice

matcham2.0Leave a comment

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

matcham2.0Leave a comment

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

matcham2.0Leave a comment

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

matcham2.0Leave a comment

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

matcham2.0Leave a comment

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

Averaging Plot Data in R– Updated Blog Post

matcham2.0Leave a comment

Note: the below was originally written and published in January 2019. I edited the post for clarity and added a few notes on using the Tidyverse suite of packages to do summarize data in R, but you can still find the original here. Not an R user but need an efficient way to average plot… Continue reading Averaging Plot Data in R– Updated Blog Post

Data Structures in R

matcham2.0Leave a comment

Before I learned R, I had previously only programmed in Matlab. Matlab and R have comparable options for data types and treat objects very similarly, but R, and specifically the Tidyverse, has this whole other vocabulary for data structures. Understanding the differences between matrices, data frames, and other data structures made learning R easier for… Continue reading Data Structures in R