1172 search results for "tutorial"

Paul Murrell – Introduction to Grid graphics (useR! 2011)

August 15, 2011
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Paul Murrell – Introduction to Grid graphics (useR! 2011)

Typically, I’m very bad at taking notes in conference. This time around, I intend to make notes for each some of the talks I attend at this year’s useR! 2011 conference. Below are my notes that I made during this afternoon’s tutorial. Note: these are just notes I made and aren’t meant to be a

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Using Emacs as a front-end for R

August 15, 2011
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Back when I was a grad student, I was a devoted Emacs user. I basically used it like an operating system: it wasn't just my text editor, but also my mail reader, my Web browser, my news reader, and so much more. (I once even asked our sysadmin to change my default shell to /usr/bin/emacs. He refused.) So when...

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Live from useR!

August 15, 2011
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The Revolution Analytics team is at the R user conference useR! at Warwick University this week. We'll bring you the updates from the conference with the latest from the R community as we go, but as we're on UK time blogging will be at unusual hours for the next few days. Things are off to a great start, with...

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The Dancing Economist’s content will be statistically enhanced.

August 13, 2011
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The Dancing Economist’s content will be statistically enhanced.

Recently, I have been fed up. Why? because I wanted to produce professional forecasts on my blog but don't have SAS. I wanted to forecast with some AR, ARMA and ARIMA models, but couldn't. Completely heartbroken. I got to thinking-  R co...

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QTL Analysis in R

August 13, 2011
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QTL Analysis in R

See also: Part 1: QTL Analysis and Quantitative Genetics  Part 2: Statistical Methods for QTL Analysis The 'qtl' package in R allows you to implement QTL analysis using the methods I've previously discussed. The code below is adapted from Broman...

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Using OpenMP-ized C code with R

August 11, 2011
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What is OpenMP? Basically a standard compiler extension allowing one to easily distribute calculations over multiple processors in a shared-memory manner (this is especially important when dealing with large data — simple separate-process approach usually requires as many copies of the working data as there are threads, and this may easily be an overkill even

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Programmers Should Know R

August 6, 2011
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Programmers Should Know R

Programmers should definitely know how to use R. I don’t mean they should switch from their current language to R, but they should think of R as a handy tool during development.Again and again I find myself working with Java code like the following. td.linenos { background-color: #f0f0f0; padding-right: 10px; } span.lineno { background-color: #f0f0f0; Related posts:

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Friday Links: R, OpenHelix Bioinformatics Tips, 23andMe, Perl, Python, Next-Gen Sequencing

August 5, 2011
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Friday Links: R, OpenHelix Bioinformatics Tips, 23andMe, Perl, Python, Next-Gen Sequencing

I haven't posted much here recently, but here is a roundup of a few of the links I've shared on Twitter (@genetics_blog) over the last two weeks.Here is a nice tutorial on accessing high-throughput public data (from NCBI) using R and Bioconductor.Cloud...

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New Rcpp master classes scheduled for New York and San Francisco

August 4, 2011
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Together with Revolution Analytics, I will be offering two more one-day classes on the Rcpp package for seamless integration of R and C++. The format will follow the workshop Romain and I gave during the tutorial day preceding this year's R/Financ...

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Your Data is Never the Right Shape

July 31, 2011
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Your Data is Never the Right Shape

One of the recurring frustrations in data analytics is that your data is never in the right shape. Worst case: you are not aware of this and every step you attempt is more expensive, less reliable and less informative than you would want. Best case: you notice this and have the tools to reshape your Related posts:

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