1757 search results for "Ggplot2"

Doodling With a Conversation, or Retweet, Data Sketch Around LAK12

May 2, 2012
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Doodling With a Conversation, or Retweet, Data Sketch Around LAK12

How can we represent conversations between a small sample of users, such as the email or SMS converstations between James Murdoch’s political lobbiest and a Government minister’s special adviser (Leveson inquiry evidence), or the pattern of retweet activity around a couple of heavily retweeted individuals using a particular hashtag? I spent a bit of time

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Finding Earth II

May 2, 2012
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Finding Earth II

By 2030, we will have found approximately 10,000 exoplanets. "If it is just us... seems like an awful waste of space." -- from the movie Contact (1997) based on the book Contact by Carl Sagan. By the year 2030, it's possible that over ten th...

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New R User Group in Cologne, Germany

May 1, 2012
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The latest local R user group to join the fold is the Köln R User Group, now the sixth R user group in Germany. Their first group meeting will be on July 6, with presentations on ANOVA, ggplot2 graphics in Deducer, and writing R code with Emacs's Org-mode. If you're in the Cologne area, this would be a great...

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microbenchmarking with R

April 28, 2012
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microbenchmarking with R

I love to benchmark.  Maybe I’m a bit weird but I love to bench  everything in R.  Recently I’ve had people raise accuracy challenges to the typical system.time and rbenchmark package approaches to benchmarking.  I saw Hadley Wickham promoting the … Continue reading →

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How to download complete XML records from PubMed and extract data

April 27, 2012
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How to download complete XML records from PubMed and extract data

Yesterday I wrote an article that looked at the top 20 Cognitive Behavior Therapy journals with the most publications; today I will explain how I did it with R.

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Randomization thoughts

April 27, 2012
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Randomization thoughts

Le Grand Casino of Monte CarloOn Monday I’m going to be leading a little stats workshop on randomization tests and null models. In preparation for this I wrote up code for null model examples I wanted to write a post that introduced the basics of these models (Null models, bootstrapping,...

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phyloseq: Reproducible interactive analysis of microbiome census data using R

April 26, 2012
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phyloseq: Reproducible interactive analysis of microbiome census data using R

Collaborative development of phyloseq on GitHub. Official stable release of phyloseq on Bioconductor. Advances in DNA sequencing technology have dramatically improved the scope and scale of culture-independent investigations into microbial communities. There are effective software tools available to process raw DNA … Continue reading →

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Live Longer – Choose Your Country Wisely (if you can)

April 25, 2012
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Live Longer – Choose Your Country Wisely (if you can)

Full democracy countries are the ones in which to live. This week's story could start and end with the above graph with almost no further explanation. But that wouldn't do it justice. So, like so many of the past articles on "Graph o...

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Varying Window Length for Linear Models on Stocks

April 24, 2012
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Varying Window Length for Linear Models on Stocks

In a previous post, we discussed ideas generated by a Timely Portfolio post about Linear Models on Stock. I wanted to see if there was a relationship between the window length of the running mean of the linear regression slope estimate and the running mean of the correlation between fitted and observed values. The parameters

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How to remember point shape codes in R

April 24, 2012
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How to remember point shape codes in R

I suspect I am not unique in not being able to remember how to control the point shapes in R. Part of this is a documentation problem: no package ever seems to write the shapes down. All packages just use the “usual set” that derives from S-Plus and was carried through base-graphics, to grid, lattice Related posts:

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