1170 search results for "tutorial"

Live from useR!

August 15, 2011
By

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...

Read more »

The Dancing Economist’s content will be statistically enhanced.

August 13, 2011
By
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...

Read more »

QTL Analysis in R

August 13, 2011
By
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...

Read more »

Using OpenMP-ized C code with R

August 11, 2011
By

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

Read more »

Programmers Should Know R

August 6, 2011
By
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:

Read more »

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

August 5, 2011
By
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...

Read more »

New Rcpp master classes scheduled for New York and San Francisco

August 4, 2011
By

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...

Read more »

Your Data is Never the Right Shape

July 31, 2011
By
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:

Read more »

Core not in CiRM

July 27, 2011
By
Core not in CiRM

Despite not enjoying this year the optimal environment of CiRM, we are still making good progress on the revision (or the R vision) of Bayesian Core. In the past two days, we went over Chapters 1 (Introduction), 2 (Normal Models), 5 (Capture-Recapture Experiments), and 6 (Mixture Models), with Chapters 3 (Regression), 4 (Generalised Linear Models)

Read more »

One-liners which make me love R: twitteR’s searchTwitter() #rstats

July 21, 2011
By
One-liners which make me love R: twitteR’s searchTwitter() #rstats

R reminds me a lot of English. It’s easy to get started, but very difficult to master. So for all those times I’ve spent… well, forever… trying to figure out the “R way” of doing something, I’m glad to share these quick wins. My recent R tutorial on mining Twitter for consumer sentiment wouldn’t have

Read more »