Monthly Archives: December 2011

Magnetic Resonance Imaging in R

December 29, 2011
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Volume 44 of the Journal of Statistical Software was published in October 2011.  The special volume on “Magnetic Resonance Imaging in R” features articles and packages related to a variety of imaging modalities:functional MRIdiffusion-weighted MRIdynamic contrast-enhanced MRIdynamic susceptibility-contrast MRI structural MRIThe papers describe the methodology, software implementation and provide comprehensive examples and data. ...

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How much is a shower?

December 29, 2011
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How much is a shower?

After looking at my heating expenses, I turned to the costs for water heating. For some time, I looked at my water meter before and after taking a shower or a bath. Quite often, I forgot one or the other measurement, but I collected about 40 observations. Here is what they look like:The data suggest that for a...

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New version of the Rcmdr package

December 29, 2011
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This is the massage sent by John Fox to the R-pkgs mailing list: Dear R users, I’d like to announce a new version, 1.8-1, of the Rcmdr package. The Rcmdr (“R Commander”) package provides a basic-statistics graphical user interface (GUI) to R, implemented in Tcl/Tk via the standard R tcltk package. Beyond small changes and additions, the new version of...

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Japan Stagnation Myth?

December 28, 2011
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Japan Stagnation Myth?

I came across this piece on The Atlantic website by Eamonn Fingleton arguing that Japan's two decade long stagnation is largely a myth. I'm not willing, just yet, to completely go along with his thesis that this myth has been stoked by the Japanes...

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Top Grossing Movies by Year (U.S.)

December 28, 2011
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Top Grossing Movies by Year (U.S.)

Description:Top grossing movie year by year, adjusted for inflation.Data:http://thenumbers.comAnalysis:This is a bit of an odd chart.  It only shows the total gross of the highest grossing movie for each year.  When adjusted for inflation, 'G...

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Nutrient intake data, finalising the data in R

December 28, 2011
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I run plain R in the normal gui under Windows 7, which means no bells and whistles. This means that I find the R gui somewhat awkward to program in. Thanks to advice I received a number of years ago, I use Notepad ++ as my programming environment. It h...

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R-specific review of blog year 2011

December 28, 2011
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R-specific review of blog year 2011

Most popular posts Two of the ten most popular posts during the year were completely about R: The R Inferno revised (number 6) Solve your R problems (number 9) R played a role in the other eight top ten, and many of the rest of the posts as well. R The R Inferno was revised … Continue reading...

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Heating costs

December 28, 2011
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Heating costs

In 2010, my heating costs exceeded my advance payments by about 25%. This motivated me to decompose the costs to see what drove the changes. Here is the result:The numbers refer to Euros. Read von right to left: 2010 was a cold year (+102EUR), but gas consumption in this house was relatively low (–89EUR). Also, running costs and...

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Nutrients consumed daily, R analysis story board

December 28, 2011
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With any relatively complicated programming task, I prefer to first create a story board that provides the steps I will take to complete the overall task. This may end up being a heavily edited post if I find that my plans change part way through.The p...

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Homicides in Mexico 2010

December 28, 2011
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Homicides in Mexico 2010

Recently the Mexican government released to the public the final homicide data for 2010, and as you can see from the chart Mexico has suffered from a steep rise in homicides since 2008, and in 2010 reached the highest homicide rate in recent history. The Mexican government had actually released preliminary homicide data...

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