Averaging Plot Data in R– Updated Blog Post

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

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

Lab Methods for Soil Testing

I occasionally write for another blog on my advisor's website and thought some readers here may be interested in a recent post-- Lab Methods for Soil Testing. I broke down some common methods for measuring soil test phosphorous and potassium. These methods can be important when you're comparing your soil test values to the critical… Continue reading Lab Methods for Soil Testing

Blocking Field Trials and the First Law of Geography

I'm studying for my prelims this semester, which involves going back over the classes I've taken over the last 4 years, reviewing my research proposal, and just generally refreshing my memory about the topics a person with a PhD in agronomy should know. I'm focusing on traditional statistics and experimental designs this week, which reminded… Continue reading Blocking Field Trials and the First Law of Geography

Degrees-Minutes-Seconds, Decimal Degrees, and Eastings and Northings

I've worked on two different multi-state fertilizer trials this year. Typically for these types of projects, collaborators from many different labs agree to all apply the same treatments, take the same measurements, and submit data to a single person to analyze and publish. I get the weirdly satisfying (and occasionally frustrating) job of formatting the… Continue reading Degrees-Minutes-Seconds, Decimal Degrees, and Eastings and Northings