2417 search results for "twitteR"

useR! Conference 2011 highlights

August 20, 2011
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useR! Conference 2011 highlights

I was at the useR! Conference at The University of Warwick in Coventry, UK, last week. My goal in going was to learn the latest things regarding (simple) dynamic graphics, (simple) web-based apps, parallel computing, and memory management (dealing with big data sets). I got just what I was hoping for and more. There are

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useR! 2011 roundup

August 19, 2011
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useR! 2011 roundup

As I stand here at Heathrow waiting for my flight back to the States, I thought I'd dash off a few quick reflections of the userR! 2011 conference at University Warwick. It was an outstanding event. There's something about a conference of just a few hundred attendees (there were about 450) that creates a sense of camaraderie and common...

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useR2011 highlights

August 18, 2011
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useR2011 highlights

useR has been exhilarating and exhausting. Now it’s finished, I wanted to share my highlights. 10. My inner twelve year old schoolgirl swooning and fainting with excitement every time I chatted with a member of R-core. 9. Patrick Burns declaring that his company consists of himself and his two cats. And that one of the

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I, Rbot: Tweeting from R

August 18, 2011
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I, Rbot: Tweeting from R

Over the past few weeks I’ve been running batches of JAGS simulations from R. Although these models typically converged within an hour or so, more complex models can take days, or even weeks to converge. Because we, as humans, are … Continue reading →

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The stupidest R code ever

August 17, 2011
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The stupidest R code ever

Let’s start this blog off right, with the stupidest R mistake I’ve ever made (I think). In the R package that I write, R/qtl, one of the main file formats is a comma-delimited file, where the blank cells in the second row are important, as they distinguish the initial phenotype columns from the genetic marker

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Introduction

August 17, 2011
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Introduction

I’m at the useR! Conference in Coventry, UK, this week. It’s been every bit as inspiring, interesting and useful as I’d hoped. Particularly interesting were the Lightning talks: a series of 5 minute presentations with one minute in between, with each presentation having 15 slides of 20 sec each, moved forward automatically.  It worked extremely

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useR2011 Easy interactive ggplots talk

August 17, 2011
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useR2011 Easy interactive ggplots talk

I’m talking tomorrow at useR! on making ggplots interactive with the gWidgets GUI framework. For those of you at useR, here is the code and data, so you can play along on your laptops. For everyone else, I’ll make the slides available in the next few days so you can see what you missed. Note

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Teaser: Running R as a map/reduce job from Riak

August 17, 2011
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Teaser: Running R as a map/reduce job from Riak

Alliterations aside, here is a preview of something I’ve been tinkering with. My goal is to be able to run …Continue reading »

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Ulrike Gromping – Design of Experiments in R

August 16, 2011
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Ulrike Gromping – Design of Experiments in R

Example: Car seat occupation: Algorithm must decide whether airbag opens: Must open for adult but not for small child or if the seat if empty a few others I missed. Key questions are: What type of design: 32 run regular fractional factorial Response measurement – depends on dummy position, so repeat for 3 different dummy

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High Performance Computing

August 16, 2011
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High Performance Computing

Wilem Ligtenberg – GPU computing and R Why GPU computing – theoretical GFLOPs for a GPU is three times greater than a CPU. Use GPUs for same instruction multiple data problems (SIMD). Initially GPUs were developed for texture problems. For example, a wall smashed into lots of pieces. Each core handled a single piece. CUDA

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