Publications by Daniel's Blog
Showing explained variance from multilevel models
In this post I will show one way to display explained variance using a line chart. For the best of my knowledge, there is no a default plot for displaying the effect of a factor on the deviance of multilevel models; so this is going to be a tentative for showing such a statistic in my ongoing dissertation. The following values were obtained usi...
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Drawing maps using shape files and R
Sometimes, the only thing we want is a chart that speaks for itself rather than boring regression tables in our research paper. Graphs are efficient at showing the broad picture of an issue. In fact, graphs in research papers seem to be gaining a momentum in political science. If you want a more in-depth discussion about this, you may want readin...
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Bayes says `don’t worry` about Scotland’s Referendum
Just few hours before Scots head to the polls, there is not an overwhelming advantage of the anti-independence vote. Actually, the margin is shorter than last time I looked at it, but despite such a growing trend in favor of the “Yes” campaign in the last weeks, the “NO” side has an edge still. To frame this in terms of probabilities that...
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Yep. He made it; country voted No
Yesterday, more Scots than ever since universal suffrage was introduced cast a ballot on the matter of independence. The turnout was itself phenomenal and that potentially implicates a series of questions for the government authorities and citizens. For the time being the sole question is: would this benefit one side or the other? The verdict f...
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Flowers Fractals, or Fractal Flowers
Last week I attended a “Flower Festival” in Joinville, where I had opportunity to admire several of among the most beautiful and awarded flowers, orchids, and decoration plants. Surprisingly, though, I never had thought on flowers like fractals the way I did this time. Introduction Fractals attract lots of interest, especially from mathemat...
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Gender Effect in Conference Talks
I was searching in the arXiv repository for an interesting paper to read over the weekend, when I found this: “Studying Gender in Conference Talks – data from the 223rd meeting of the American Astronomical Society”. The title and figures caught my attention more than the subject of the conference, I’ve to confess. The plot below, taken fr...
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The Star Wars Grossing War
Motivation I finally made to the movies for watching the new Star Wars release this weekend. Although this episode wasn’t that spectacular, in my view, it did inspire some data seeking afterwards. I wanted to know how this film compares to others top movies in terms of worldwide grossing as well as within the Star Wars series. Fortunately, ther...
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The Star Wars Grossing War
Motivation I could finally made to the movies for watching the new Star Wars release this weekend. Although this episode wasn’t that spectacular, in my view, it did inspire some data seeking afterwards. I wanted to know how this film compares to others top movies in terms of worldwide grossing as well as within the Star Wars series. Fortunately...
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Everything Ends on Wednesday
The Brazilian Carnival just ended this week, but for some people it is time to starting worry about crazy things that may have happened over the days of the flesh festival. Watching the news, the spokesperson of the Test and Prevention Center (CTA) in Brasilia estimated that the number of people seeking counseling and test kits increases on avera...
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R packaging industry close-up: How fast are we growing?
I worked a bit over the weekend preparing my talk to be delivered at the seminar organized by IBPAD this week at University of Brasilia, addressing the interfaces of Big Data and Society. I was invited to present the R package SciencesPo for an eclectic crowd. Eclectic in terms of background as well as familiarity with R, so, I thought it would b...
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