Monthly Archives: January 2011

table() in R

January 11, 2011
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The table function in R is very useful, especially when working with survey data. Often you may have Likert scales for levels of agreement or satisfaction. table() quickly gives the distribution of answers, which can then be used for (bar)plots.However...

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User Account Control (Windows)

January 11, 2011
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When using Windows Vista / 7, Windows' User Account Control can be annoying. When is R going to be Windows 7 ready, asking for elevated priviliges only when needed? I guess the problem lies in the structure of packages.Running Rgui.exe "as Administrato...

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User Account Control (Windows)

January 11, 2011
By

When using Windows Vista / 7, Windows' User Account Control can be annoying. When is R going to be Windows 7 ready, asking for elevated priviliges only when needed? I guess the problem lies in the structure of packages.Running Rgui.exe "as Administrato...

Read more »

OpenData + R + Google = Easy Maps

January 11, 2011
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OpenData + R + Google = Easy Maps

The release of the R package “googleVis” has made the production of interactive maps through Google’s Chart Tools a simple task. Ignoring the some basic data manipulation the below map...

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Reasons for Transitioning to Vim: Bringing LaTeX, R, Sweave and More under One Roof

January 10, 2011
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This post describes the reasons for my transition to Vim. Brief Background Over the years I've used a lot of different text editors on Windows. In general, I've used whatever text editor came with a program. When I started using R, I moved from Rgui t...

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Reasons for Transitioning to Vim: Bringing LaTeX, R, Sweave and More under One Roof

January 10, 2011
By
Reasons for Transitioning to Vim: Bringing LaTeX, R, Sweave and More under One Roof

This post describes the reasons for my transition to Vim.Brief BackgroundOver the years I've used a lot of different text editors on Windows.In general, I've used whatever text editor came with a program.When I started using R, I moved from Rgui throug...

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Six places left for the forecasting workshop

January 10, 2011
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There are six places left for the forecasting workshop I am giving in Switzerland in June. If you were thinking of going, book in fast!

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Emacs Starter Kit for the Social Sciences: Now Easier to Install

January 10, 2011
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New in nerdery this week, it’s now a bit easier to install the Emacs Starter Kit for the Social Sciences that I put together (based on lots of great work by Phil Hagelberg and, more recently, Eric Schulte). In the past, the fact that AucTeX was b...

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Le Monde puzzle [1]

January 10, 2011
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Le Monde puzzle [1]

Following the presentation of the first Le Monde puzzle of the year, I tried a simulated annealing solution on an early morning in my hotel room. Here is the R code, which is unfortunately too rudimentary and too slow to be able to tackle n=1000. #minimise \sum_{i=1}^I x_i #for 1\le x_i\le 2n+1, 1\e i\le I

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Run R in parallel on a Hadoop cluster with AWS in 15 minutes

January 10, 2011
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If you're looking to apply massively parallel resources to an R problem, one of the most time-consuming aspects of the problem might not be the computations themselves, but the task of setting up the cluster in the first place. You can use Amazon Web Services to set up the cluster in the cloud, but even that take some time,...

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