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Highlights of the useR! 2012 – Review of the reviews

June 24, 2012
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Highlights of the useR! 2012 – Review of the reviews

It’s gutted that I could not attend useR! 2012 after having a great time at useR!2011 at Warwick. However, a great active online community of useRs allows me to get lots of goods stuffs from the conference even though I did not attend physically. By keep following the #useR2012 and #rstats in Twitter and reading some great posts from R-bloggerRs on the

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Framing investing as a decision-making process

June 23, 2012
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Framing investing as a decision-making process

Brian Peterson and I had a chance to visit the University of Washington a couple of weeks ago at the behest of Doug Martin, where we gave a seminar covering various R packages we’ve written. Here are the slides we used. We also had quite a bit of time that we spent with Doug, Eric

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Retweets, Modified Tweets, vias: what’s in the SoMeLab dataset

June 23, 2012
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Retweets, Modified Tweets, vias: what’s in the SoMeLab dataset

  Since October we have been collecting tweets related to the Occupy movement and so far we’ve picked up 64,298,104 tweets. In future posts we will give you some insight into our process, but today the question is, what is the difference between new style retweets, old style retweets and new emerging tags like MT?

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Updates to Old code

June 22, 2012
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Updates to Old code

I notice from time to time that people download code from the drop box. The drop box lags  CRAN.  I’ve upload the newest versions to the drop box. In the future I will post new releases to the drop box before I submit to CRAN.

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eoda publishes interactiveGGPLOT – interactive graphics with ggplot2

June 22, 2012
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One of Rs great strengths compared to other statistic solutions or programming languages ​​is the amount of possibilities for creating well-designed publication-quality plots. Almost all plot types can be created with any amount of fine tuning. R works on small data sets as well as on big data. In addition to Rs base-graphics various add-on

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Two new, important books on R

June 22, 2012
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Two new, important books on R

Two books were recently published that are sure to help R grow even faster. R has a reputation, partially deserved, for being hard to learn.  These books will help.  The first makes learning easier, the second can make learning less necessary for initiates. I have not yet touched either book. R for Dummies The authors … Continue reading...

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An example on sentiment analysis with R

June 21, 2012
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An example on sentiment analysis with R

by Yanchang Zhao, RDataMining.com There is a nice example on sentiment analysis with R at <http://viksalgorithms.blogspot.com.au/2012/06/tracking-us-sentiments-over-time-in.html>. In the example, the Wikileaks cable corpus is analyzed to track US sentiments of other countries and their presidents over time. The example describes … Continue reading →

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R Workshop: Introducing Slidify – HTML5 slides from R markdown

June 20, 2012
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R Workshop: Introducing Slidify – HTML5 slides from R markdown

Thursday, June 28th, 2012  19h. <–  new evening time! Tomson House: 650 McTavish, H3A 1Y2, Montréal, QC <– new social setting! guRu: Ramnath Vaidyanathan (McGill University) Ramnath Vaidyanathan will introduce the group to slidify, his brand new R package. From the slidify website: “The objective of slidify is to make it easy to create reproducible

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The R-Podcast Episode 8: Visualization with ggplot2

June 20, 2012
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I’m happy to present this jam-packed episode of the R-Podcast dedicated to using the ggplot2 package for visualization. This episode will have a companion screencast released in the next few days. I use data from the Hockey Summary Project to demonstrate how to create a series of boxplots of NHL regular season attendance for each

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Euro 2012: End of Group Stage

June 20, 2012
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Euro 2012: End of Group Stage

Time for an update of the plots. Here are the teams still left in the competition. This is the group stratification. Finally, the busy plot.

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