Monthly Archives: March 2011

RStudio – An IDE for the Masses!

March 1, 2011
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RStudio – An IDE for the Masses!

I’ll admit it. There’s one thing that always makes me sad working on a mac. R. How does R make me sad on a mac? I look over at my compatriots in Windows using fun Integrated Development Environments (IDEs) like Tinn-R, and I sigh. On the other hand, I just had the sad little text

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R User Group Birmingham Alabama

March 1, 2011
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R User Group Birmingham Alabama

I would like to start a R user group in Birmingham, Alabama.  Please comment if anyone is interested.  I’m thinking I will host in Google Groups, since meetup costs money.  Let me know if I should use some other site.

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Look at that! I dethroned Hadley in the “Most Watched…

March 1, 2011
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Look at that! I dethroned Hadley in the “Most Watched…

Look at that! I dethroned Hadley in the “Most Watched This Week” list on github.com.

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I love RStudio

March 1, 2011
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I love RStudio

Typically if I am working with R I will have a lot of different windows open all at once. I'll have the R Console (for Mac) of course and a text editor (Xcode or TextEdit), plus there will usually be some help windows to examine particular functions o...

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How Does R Deal with Categorical Explanatory Variables?

March 1, 2011
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How Does R Deal with Categorical Explanatory Variables?

Here's a video tutorial where I demonstrate an answer to this question.This video is designed to instill a baseline level of practical knowledge. There is more to how R treats factors in regression models. An interested reader should Google "R contra...

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RStudio: a cut above

March 1, 2011
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RStudio: a cut above

As most followers of R-bloggers.com and the Twitter #rstats know by now, RStudio is a new open-source IDE for R that was beta-released yesterday. I have started putting it through its paces within my R workflow, and my impressions are more than favorable. I also tried it out on my home Linux server in server

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Data from last post

March 1, 2011
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Data from last post

Posting the code I used in the last post wasn't that useful unless I also posted the data set. Here's the data. These are made up data, but it is a nice data set for illustrating how to conduct a regression. Enjoy!

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Surprising sudoku

March 1, 2011
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Surprising sudoku

> printSudoku(z) +-------+-------+-------+ |   9   |       | 7   5 | |     6 |       |   9   | | 4 5 3 | 1 7   | 2 8   | +-------+-------+-------+ |     5 |     7 |   6   | | 1   9 | 6 8   |       | |   8   |   3   |     1 | +-------+-------+-------+ | 7   2 |

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