Sometimes, articles get done
Back in 2017, I gave a talk in which I spoke of “data moves.” These are things we do to data in order to analyze data. They’re all pretty obvious, though some are more cognitively demanding than...
View ArticleWeather Models and Matrices
Ack! I don’t have time to do justice to this right now, but any readers need to know if you don’t already that the geniuses at Desmos seem to be making a matrix calculator:...
View ArticleWeather Models Reflection
Last time I described an idea about how to use matrices to study simple weather models. Really simple weather models; in fact, the model we used was a two-state Markov system. And like all good simple...
View ArticleFlowers! Phi! Codap!
Okay, something very short, with thanks to Avery Pickford: How do sunflowers organize their seeds? Why is phi the most irrational number? How are these two questions connected, and how can we model...
View ArticleHow can you be awash in data? Let me count the ways.
Three. I oversimplify, of course, but this is what I’m thinking about; and this came as a result of attending an advisory meeting about a cool project called Data Clubs. And as usual for this blog, we...
View ArticleThinking about Teaching and Time Series
Time series data shows the same phenomenon taken at different times. It’s possible, therefore, to plot the data—traditionally with time on the horizontal axis—and see how the data values change with...
View ArticleTime Series and Modeling
The second in a sequence of posts about time series. Here is the first one. Students in traditional stats, as well as in science and math classes, learn linear modeling in the sense of finding a...
View ArticleTime Series! Smoothing and COVID (and folding, too)
Welcome to the third in a soon-to-end series in which I figure out what I think about time series data, and how it is different from the data we usually encounter in school assignments. We’re...
View ArticleLetter Frequencies (and more) in Wordle
Let’s assume you already know about Wordle. As you may know, Wordle uses a curated list of five-letter words. For example, it doesn’t include plurals of four-letter nouns (no BOOKS) or past tenses...
View ArticleTime series without time on an axis
Long ago I promised a post (to come quickly; apparently I lied) about this topic. If we have time-series data, we typically put time on the horizontal axis. But that’s not the only way to represent...
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