Monthly Archives: October 2011

Halloween 2011 count

October 31, 2011
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Halloween 2011 count

We don’t get many kids seeking candy at our house. I’m not sure if there just aren’t many kids in the neighborhood, or if it’s our location (next to the pond, with a big gap before the next house). I decided to keep track. As usual, we bought a huge bag of candy, and we

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Japan Quake Map

October 31, 2011
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Japan Quake Map

Japan Quake Map with R, ggplot2, and FFmpeg   1 Introduction As a follow-up to ‘Analysis of Japanes

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Covered Call ETF Performance

October 31, 2011
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Covered Call ETF Performance

Covered call ETFs have become quite popular lately. Living in Canada, I have been holding a couple Canadian members of this family for the last few months. When I purchased them, I liked the benefits and since I wasn’t expecting any bull markets on the horizon, I bought some. These were new products back them,

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Putting the R in Hallowe’en

October 31, 2011
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Putting the R in Hallowe’en

PhD student Caroline Tucker created a Hallowe'en card using the R graphics system: You can find the R code to create the above image here. Note that you'll need to install the fields and MBA packages first. One interesting aspect of the code is the use of the mba.surf function to create the shading that gives the Jack-o'-lantern its...

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Using Sparse Matrices in R

October 31, 2011
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Using Sparse Matrices in R

Introduction I’ve recently been working with a couple of large, extremely sparse data sets in R. This has pushed me to spend some time trying to master the CRAN packages that support sparse matrices. This post describes three of them: the Matrix, slam and glmnet packages. The first two packages provide data storage classes for

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R 2.14.0 Released

October 31, 2011
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A Halloween treat for R users! Version 2.14.0 was released today. Among other things there are big improvements for parallel processing. For a quick synopsis of the new "goodies", see the post on the Revolutions blog.© 2011, David E. Giles

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Plotting grouped data vs time with error bars in R

October 31, 2011
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Plotting grouped data vs time with error bars in R

This is my first blog since joining R-bloggers. I’m quite excited to be part of this group and apologize if I bore any experienced R users with my basic blogs for learning R or offend programmers with my inefficient, sloppy … Continue reading →

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Plotting grouped data vs time with error bars in R

October 31, 2011
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Plotting grouped data vs time with error bars in R

This is my first blog since joiningR-bloggers. I’m quite excited to be part of this group and apologize if I boreany experienced R users with my basic blogs for learning R or offendprogrammers with my inefficient, sloppy coding. Hopefully writing for...

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useR! 2011 – Jonathan Rougier: Nomograms for visualising relationships between three variables

October 31, 2011
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useR! 2011 – Jonathan Rougier: Nomograms for visualising relationships between three variables

useR2011 – Rougier View more presentations from rusersla

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useR! 2011 – Wolfgang Huber: Genomes and phenotypes

October 31, 2011
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useR! 2011 – Wolfgang Huber: Genomes and phenotypes

useR2011 – Huber View more presentations from rusersla

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