2663 search results for "ggplot2"

How unusual is it for TLDs to resolve to an address at the top most level? (a.k.a. a sneaky, basic introduction to dplyr)

August 29, 2014
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How unusual is it for TLDs to resolve to an address at the top most level? (a.k.a. a sneaky, basic introduction to dplyr)

I saw this on Hacker News this morning and it got me curious as to how many other TLDs (e.g. .com) resolve to an address (i.e. http://uz./ displays a page in your browser since uz. resolves to 91.212.89.8). This is quick work with R and the resolv & iptools packages, plus I threw in a little...

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A Brief Introduction to Plotly

August 28, 2014
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A Brief Introduction to Plotly

This is a guest post by Matt Sundquist. Matt studied philosophy at Harvard and is a Co-founder at Plotly. He previously worked for Facebook’s Privacy Team, has been a Fulbright Scholar in Argentina and a Student Fellow of the Harvard Law School Program on the Legal Profession, and wrote about the Supreme Court for SCOTUSblog.com. Emailing… Continue reading →

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The Andrica’s Conjecture

August 27, 2014
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The Andrica’s Conjecture

Things should be as simple as possible, but not simpler (Albert Einstein) Following with conjectures about primes, it is time for Andrica’s conjecture. The great mathematician Leonhard Euler (1707-1783) pointed: “Mathematicians have tried with no success to find some kind of order in the sequence of prime numbers and today we have reasons to believe that

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Adding CITATION to your R package

August 27, 2014
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Adding CITATION to your R package

Original post from Robin's Blog:Software is very important in science – but good software takes time and effort that could be used to do other work instead. I believe that it is important to do this work – but to make it worthwhile, people need to get credit for their work, and in academia that...

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Reading the Gauss-Markov theorem

August 26, 2014
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Reading the Gauss-Markov theorem

What is the Gauss-Markov theorem? From “The Cambridge Dictionary of Statistics” B. S. Everitt, 2nd Edition: A theorem that proves that if the error terms in a multiple regression have the same variance and are uncorrelated, then the estimators of the parameters in the model produced by least squares estimation are better (in the sense Related posts:

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Announcing dtupdate v1.0 – R Package Reporter/Updater for the devtools Universe

August 21, 2014
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The dtupdate package has functions that attempt to figure out which packages have non-CRAN versions (currently only looks for github ones) and then tries to figure out which ones have updates (i.e. the github version is > local version). It provides an option (not recommended) to auto-update any packages with newer development versions. The reason auto updating is...

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Do your "data janitor work" like a boss with dplyr

August 20, 2014
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Do your "data janitor work" like a boss with dplyr

Data “janitor-work” The New York Times recently ran a piece on wrangling and cleaning data: “For Big-Data Scientists, ‘Janitor Work’ Is Key Hurdle to Insights” Whether you call it “janitor-work,” wrangling/munging, cleaning/cleansing/scrubbing, tidying, or something else, the article above is worth a read (even though it implicitly denigrates the important work that your housekeeping staff does). It’s...

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Example 2014.10: Panel by a continuous variable

August 18, 2014
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Example 2014.10: Panel by a continuous variable

In Example 8.40, side-by-side histograms, we showed how to generate histograms for some continuous variable, for each level of a categorical variable in a data set. An anonymous reader asked how we would do this if both the variables were continuous. ...

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Winston Chang’s “Interactive Graphics with ggvis” at useR! 2014

August 14, 2014
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gggggviz-Greenshot_2014-08-15_00-07-06

Winston Chang’s “Interactive Graphics with ggvis” talk at useR! 2014 was in many ways a...

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Visit of Di Cook

August 12, 2014
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Visit of Di Cook

Next week, Professor Di Cook from Iowa State University is visiting my research group at Monash University. Di is a world leader in data visualization, and is especially well-known for her work on interactive graphics and the XGobi and GGobi software. See her book with Deb Swayne for details. For those wanting to hear her speak, read on. Research seminar She...

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