Here on Spatially Challenged, I post things people ask me about. The bigger topics (SAGA GIS, data sources, Word tricks, etc.) get turned into series of how-to posts, and the smaller questions inspired a series of vocab posts. Today we're talking about the words Euclidean and Cartesian. Euclidean means "related to Euclid." Euclid was a… Continue reading Vocab Words: Euclidean and Cartesian
Category: Uncategorized
Updated About Me Page
Just a brief post so that any subscribers see that the About Me page has been updated! I made a post earlier about my recent move to Wisconsin to do a PhD at UW-Madison, but just got a chance to update the static page. Thanks for reading!
Box and Whisker Plots
Box and whisker plots are one of my favorite ways to visualize data, but they can be challenging to read if you haven't seen them before. Today I'm going to show a couple examples, and in the future I'll show you how to make your own! Firstly, box and whisker plots are also called boxplots.… Continue reading Box and Whisker Plots
Data Downloads: State and County Maps
For a long while the most frequent question I got from other GIS users was, "hey, can I have a copy of your county map shapefile?" This really easy to get from the Ohio Transportation Mapping System website, but somehow I still end up emailing out this file at least every couple months. Today I'm… Continue reading Data Downloads: State and County Maps
Capterra
This month I'm looking into some new map making software options. After talking to some friends and colleagues about their experiences, I wanted to compare the features across multiple platforms. Capterra was really helpful for me, so I wanted to share my experiences with you! I went to the GIS software category. From there, I… Continue reading Capterra
Data Downloads: Soil Maps
Today I'm continuing a series on sources of spatial data (see past posts on aerial images and DEMs). Soil maps are useful for all sorts of applications, like deciding where to place a trial in a larger field so that all the treatments are on the same soil type or determining the drainage class of… Continue reading Data Downloads: Soil Maps
Inverse Distance Weighting in SAGA
I broke out SAGA again this week to do some soil interpolations. I don't usually use inverse distance weighting (IDW) for much because you can't generate error maps or use covariates with this method. For this project I needed to make some maps in IDW to compare back to other methods. I'm using IDW for… Continue reading Inverse Distance Weighting in SAGA
Hills vs Bluffs
Gahhhh I'm terribly behind on posting here! I have some good material in the works regarding interpolation in SAGA, soil map downloads, and box plots, but today you'll have to settle for a quick geology fact. On Friday we planted a variety trial location in Galesville, WI. This site sits in a valley surround by… Continue reading Hills vs Bluffs
Living on an Isthmus
I recently moved to Madison, Wisconsin and have since become very excited about isthmuses. Madison is located on an isthmus between Lake Monona and Lake Mendota. The west side of the isthmus is the University of Wisconsin Madison campus. Between campus and the center of the isthmus is the state capital. Other cool cities on… Continue reading Living on an Isthmus
Vocab Word: Multicollinearity
I'm going to continue highlighting words I get asked about regularly. Today's feature: multicollinearity! This is a word you've probably heard about in stats class, but might not know specifically what it is or why it matters. We worry about multicollinearity when we are using multiple independent variables to model one output. One of your… Continue reading Vocab Word: Multicollinearity
Spatially Challenged 