Monthly Archives: October 2010

The "tikzDevice" package

October 20, 2010
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The "tikzDevice" package

The tikzDevice package is quite amazing. Here are two graphs I just made, with (lower) and without (upper) using the tikzDevice package. The difference in quality is huge.Since the LaTeX source file for the figure is quite large in size and may take si...

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The "tikzDevice" package

October 20, 2010
By
The "tikzDevice" package

The tikzDevice package is quite amazing. Here are two graphs I just made, with (lower) and without (upper) using the tikzDevice package. The difference in quality is huge.Since the LaTeX source file for the figure is quite large in size and may take si...

Read more »

The 2009 homicide data for Chihuahua has been updated

October 20, 2010
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The 2009 homicide data for Chihuahua has been updated

As I described in this post, the reported number of homicides in Chihuahua during 2009 turned out to be incomplete. Guess what? The SNSP just released an updated version of the homicide data, and Chihuahua went from having 2,523 homicides to 3,156. My estimate was 3,256, so I came pretty...

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The 2009 homicide data for Chihuahua has been updated

October 20, 2010
By
The 2009 homicide data for Chihuahua has been updated

As I described in this post, the reported number of homicides in Chihuahua during 2009 turned out to be incomplete. Guess what? The SNSP just released an updated version of the homicide data, and Chihuahua went from having 2,523 homicides to 3,156. My estimate was 3,256, so I came pretty...

Read more »

R Links for the Beginner on World Statistics Day

October 20, 2010
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In honor of the first World Statistics Day I thought I would share some of my favorite R links.  R is a free software statistical computing environment for performing all sorts of data and mathematical manipulation.Introduction and TutorialsR Tuto...

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R Links for the Beginner on World Statistics Day

October 20, 2010
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In honor of the first World Statistics Day I thought I would share some of my favorite R links.  R is a free software statistical computing environment for performing all sorts of data and mathematical manipulation.Introduction and TutorialsR Tuto...

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Hold on to your hats: it’s World Statistics Day!

October 20, 2010
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Apparently today is the first ever World Statistics Day. I only knew about it because I'd seen a couple of passing references to it from the stats folks I follow on Twitter. But I guess this UN-sponsored event is a big deal, judging from the official website: The celebration of the World Statistics Day will acknowledge the service provided...

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Trading secrets

October 20, 2010
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Trading secrets

Recently I had the opportunity to do a job swap with one of the guys in the laboratory here at HSL.  I helped out with the mass-spectrometry and James helped me with the data analysis.  Two very useful things came out of this. Firstly, it’s been very informative to see how the data I get

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Programming with R – Function Basics

October 20, 2010
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One of the benefits of using R for statistical analysis is the programming language which allows users to define their own functions, which is particularly useful for analysis that needs to be repeated. For example, a monthly output from a database may be provided in a pre-determined format and we might be interested in running

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Central Limit Theorem A nice illustration of the Central Limit…

October 20, 2010
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Central Limit Theorem
A nice illustration of the Central Limit…

Central Limit Theorem A nice illustration of the Central Limit Theorem by convolution.in R: Heaviside 0,1,0) }HH

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