Blog Archives

Fruit Plot: Plotting Using Multiple PNGs

October 30, 2015
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Fruit Plot: Plotting Using Multiple PNGs

In one of our previous posts (Halloween: An Excuse for Plotting with Icons), we gave a quick tutorial on how to plot using icons using ggplot. A reader, Dr. D. K. Samuel asked in a comment how to use multiple … Continue reading →

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Halloween: An Excuse for Plotting with Icons

October 27, 2015
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Halloween: An Excuse for Plotting with Icons

In my course on the GLM, we are discussing residual plots this week. Given that it is also Halloween this Saturday, it seems like a perfect time to code up a residual plot made of ghosts. The process I used … Continue reading →

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Yikes…It’s Been Awile

December 16, 2014
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Apparently our last blog post was in August. Dang. Where did five months go? Blog guilt would be killing me, but I swear it was just yesterday that Mine posted. I will give a bit of review of some of … Continue reading →

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Pie Charts. Are they worth the Fight?

July 28, 2014
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Pie Charts. Are they worth the Fight?

Like Rob, I recently got back from ICOTS. What a great conference. Kudos to everyone who worked hard to organize and pull it off. In one of the sessions I was at, Amelia McNamara (@AmeliaMN) gave a nice presentation about how … Continue reading →

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R Syntax for Ranked Choice Voting

November 30, 2013
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I have gotten several requests for the R syntax I used to analyze the ranked-choice voting data and create the animated GIF. Rather than just posting the syntax, I thought I might write a detailed post describing the process. Reading … Continue reading →

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Ranked Choice Voting

November 25, 2013
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Ranked Choice Voting

The city of Minneapolis recently elected a new mayor. This is not newsworthy in and of itself, however the method they used was—ranked choice voting. Ranked choice voting is a method of voting allowing voters to rank multiple candidates in order of preference. In … Continue reading →

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Warning: Mac OS 10.9 Mavericks and R Don’t Play Nicely

October 27, 2013
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For some reason I was compelled to update my Mac’s OS and R on the same day. (I know…) It didn’t go well on several accounts and I mostly blame Apple. Here are the details. I updated R to version … Continue reading →

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A Course in Data and Computing Fundamentals

April 19, 2013
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A Course in Data and Computing Fundamentals

Daniel Kaplan and Libby Shoop have developed a one-credit class called Data Computation Fundamentals, which was offered this semester at Macalester College. This course is part of a larger research and teaching effort funded by Howard Hughes Medical Institute (HHMI) to help students … Continue reading →

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NCAA Basketball Visualization

March 20, 2013
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NCAA Basketball Visualization

It is time for the NCAA Basketball Tournament. Sixty-four teams dream big (er…I mean 68…well actually by now, 64) and schools like Iona and Florida Gulf Coast University (go Eagles!) are hoping that Robert Morris astounding victory in the N.I.T. … Continue reading →

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ggplot ggoldy

March 7, 2013
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ggplot ggoldy

One of my graduate students worked some ggplot magic and created an almost Light Bright-esqe plot of our very own Goldy Gopher. She also, thoughtfully, published a tutorial on her blog. Read and enjoy!

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