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Allison Horst Profile picture
Allison Horst
@allison_horst
Data Scientist Advocate @ObservableHQ & teaching environmental data science @ucsantabarbara. Opinions mine. Data | Education | Art | Community. She / her.
May 26, 2023 • 9 tweets • 2 min read
An illustrated introduction to the autocorrelation function, with monster generations 👾💙🩵

🧵1/9 A line of related fuzzy mon... 🧵2/9 A friendly looking ancestra...
Aug 3, 2022 • 8 tweets • 3 min read
Got to invite these buddies back for guest visit in class yesterday 👾

Definition of the derivative. How do we find an expression for the exact slope at a single point, when the slope equation requires two points? 🧵1/8 A point on a function with coordinates (x, f(x)) who wants t Start by defining two generic points on a function f(x), separated by some distance delta x. 🧵2/8 Two points on a function, one saying "I am your neighbo
Feb 16, 2021 • 9 tweets • 3 min read
A new series to introduce the autocorrelation function (ACF) w/ time series data, with special thanks to @robjhyndman for feedback & suggestions! 👾

🧵1/9: Meet the monster family. The youngest generation is on the right (that's our host). "Intro to the autocorrelation function (ACF)" with 🧵2/9: There are some notable patterns in similarities between monsters separated by different numbers of generations...for example, in this family, monsters tend to be very similar to their great-great grandparents, but very different from their grandparents... Illustrated monsters showing that those separated by 4 gener
Sep 20, 2020 • 9 tweets • 3 min read
Lots of art therapy these days.

Definition of the derivative. How do we find an expression for the exact slope at a single point, when the slope equation requires two points? 🧵1/9 Start by defining two generic points on a function f(x), separated by some distance delta x. 🧵2/9
Jul 27, 2020 • 9 tweets • 6 min read
🧵1/9: NEWS: The palmerpenguins R pkg is on CRAN 🐧🎉! Contains structural size measurements & more for 3 penguin species that nest throughout the Palmer Archipelago, Antarctica, collected & published by Dr. Kristen Gorman (@kbgorman_ecoevo) & team @PalmerLTER! Image 🧵2/9: Learn more in our new post on the RStudio Education blog: Release the penguins! education.rstudio.com/blog/2020/07/p…
Jun 8, 2020 • 6 tweets • 4 min read
🐧🐧🐧

This penguin data is a great alternative to iris & available for use by CC0 🤩 Thank you Dr. Kristen Gorman w/ @UAFcfos, Marty Downs w/ @USLTER, & @PalmerLTER for help, info & making it available for use 🎉

Data, examples, & use info here: github.com/allisonhorst/p… 🧵 1/6 The data, published in Gorman et al. 2014 (journals.plos.org/plosone/articl…), contain observations for 3 penguin species on islands in the Palmer Archipelago, Antarctica: 🧵 2/6
Apr 11, 2020 • 7 tweets • 2 min read
Draft hierarchical clustering (single link) visuals/activity with creatures. 👾🌳
Jan 12, 2020 • 10 tweets • 3 min read
Some work-in-progress illustrations to gently introduce some concepts for 2-sample t-tests & how to think about p-values. Meant as teaching aids, not as a comprehensive standalone lesson. Caveats & assumptions abound. 🧵 Thinking warm-up:
Nov 22, 2019 • 6 tweets • 2 min read
Multiple linear regression teaching assistants. 🐉📊🎨 interpreting categorical predictor coefficients