## Japan Quake Map 2010-2011

February 2, 2012
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1 Introduction “The 3.11 Tohoku Earthquake in Japan”, It did serious damage to Japan. I have attempted gaining

## Commonly used R commands (statistics)

February 2, 2012
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When I say Ease of Use Improved, I mean you can simply copy, paste and run the codes in this post, without referring to other places, without downloading a data file and read it from R. This is how I like a blog article to be. You don’t need to read the whole article. You

## speed of R, C, &tc.

February 2, 2012
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My Paris colleague (and fellow-runner) Aurélien Garivier has produced an interesting comparison of 4 (or 6 if you consider scilab and octave as different from matlab) computer languages in terms of speed for producing the MLE in a hidden Markov model, using EM and the Baum-Welch algorithms. His conclusions are that matlab is a lot

February 2, 2012
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## Confirming SSR, SSE, and SST using matrix in R

February 1, 2012
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The codes below was done in our regression laboratory class. Here, we run first the data in SPSS, and take the ANOVA output where we can find the computed values of SSR, SSE, and SST.ANOVAb Model Sum of Squares df Mean Square F Sig. 1 Regress...

## R Training Course in the Bay Area

February 1, 2012
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An introduction to R for sofware developers and data analysts Saturday March 10th, 2012 8:30-5:00pm EBay 2161 North 1st Street San Jose, California I will be presenting a one day professional development workshop on R programming for software developers and … Continue reading →

## the birthday problem [X'idated]

February 1, 2012
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The birthday problem (i.e. looking at the distribution of the birthdates in a group of n persons, assuming a uniform distribution of the calendar dates of those birthdates) is always a source of puzzlement ! For instance, here is a recent post on Cross Validated: I have 360 friends on facebook, and, as

## RStudio Server: accessing the RStudio R IDE through your browser

February 1, 2012
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I like having all my important documents and scripts in one single place. This saves me from having to synchronize them between the different workplaces I have, and makes backupping much less of a pain. One way of achieving this… See more ›

## R is the easiest language to speak badly

February 1, 2012
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I am amazed by the number of comments I received on my recent blog entry about "by", "apply" and friends. I had started my post by pointing out that R is a language. Well indeed, I have come to the conclusion, that it is a language with lots of irregul...

## MINE: Maximal Information-based NonParametric Exploration

February 1, 2012
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There was a lot of buzz in the blogosphere as well as the science community about a new family of algorithms that are able to find non-linear relationships over extremely large fields of data. What makes it particularly useful is that the measure(s) it...

## New R User Group in Cambridge, UK

January 31, 2012
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Yet another new local R user group has launched this month, this time in Cambridge, UK. Cambridge RUG was created by data analyst Andrew Caines to promote the use of R in the Cambridge area. The group aims to encourage people try the R language, act as an advice centre to help people get where they want to with...