Recently we released googleVis 0.5.3 on CRAN. The package provides an interface between R and Google Charts, allowing you to create interactive web charts from R.Screen shot of some of the Google ChartsAlthough this is mainly a maintenance release, I'd... [Read more...]

professors of public health 101 probably cite the results of the demographic and health surveys (dhs) more than all other data sources combined.  funded by the united states agency for international development (usaid) and administered by the tech... [Read more...]

UseR! 2014, the R user conference held last week in LA, was the most successful yet. Around 700 R users from around the world converged on the UCLA campus to share their experiences with the R language and to socialize with other data scientists, statisticians and others using R. The week began ... [Read more...]

This year’s UseR! conference was held at the University of California in Los Angeles. Despite the great weather and a nearby beach, most of the conference was spent in front of projector screens in 18° c (64° f) rooms because there were so many interesting presentations and tutorials going on. I ... [Read more...]

The table command is great in its simplicity for cross tabulations. I have run into some settings where it is slow and I wanted to demonstrate one simple example here of why you may want to use other functions or write your own tabler. This example is a specific case ... [Read more...]

I will start this post with a disclaimer:The main intention of the post is to show how is the distribution of the school principal names in Mexico, for example, to show basic trends regarding about what is the most common nation-wide first name and so ... [Read more...]

This is a report of the first day of the Directions in Statistical Computing (DSC) conference that took place in Brixen, Italy (See here for an introduction). Performance enhancements were the main theme of the day, covering not just improvements … Continue reading → [Read more...]

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Last week I taught a three-hour introduction to R workshop for life scientists at UVA's Health Sciences Library.I broke the workshop into three sections:In the first half hour or so I presented slides giving an overview of R and why R is so awesome. Du... [Read more...]

Technology is just a tool: in terms of getting the kids working together and motivating them, the teacher is the most important (Bill Gates) Some days ago I read this article in R-bloggers and I discovered the TurtleGraphics package. I knew about turtle graphics long time ago and I was ... [Read more...]

This post describes a Shiny app that identifies fantasy football sleepers.  The app allows you to modify your league settings, and calculates robust averages of projections across numerous sources.  Best of all,[...] The post Identify Fantasy Football Sleepers with this Shiny App appeared first on Fantasy Football Analytics. [Read more...]

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Last week I tried pcalg. This week deal (Learning Bayesian Networks with Mixed Variables). The aim n this post I want to try something new, a causal graphical model. The aim here is just as much to get myself a feel what these things do as to underst... [Read more...]

I would like to code up a simple method of minimizing the number of coins required to give change.  Then I would like see what coins are most likely to be called into usage if change is required from a uniform draw between 1 cent and 499 cents. Exported from Notepad++ # Define ... [Read more...]

The latest version of rNOMADS is now available on CRAN.  This update resolves several minor bugs and one major one involving multiple variable/level selections when using the ModelGrid function.  I have also added support for two more models on NOMADS:  Climate Forecast System Flux Products and Climate Forecast System 3... [Read more...]

RDataMining Group: http://group.rdatamining.com Twitter: @RDataMining Website: http://www.RDataMining.com The RDataMining group has 6000 members today, 5 July 2014. Created in August 2011, this group has developed into a big community with 6000 member within three years. Since its creation, many members … Continue reading → [Read more...]

Page 94 of Gelman, Carlin, Stern, Dunson, Vehtari, Rubin “Bayesian Data Analysis” 3rd Edition (which we will call BDA3) provides a great example of what happens when common broad frequentist bias criticisms are over-applied to predictions from ordinary linear regression: the predictions appear to fall apart. BDA3 goes on to exhibit ... [Read more...]

I’ve had a couple of months off from blogging. Time for some computer-assisted biology! Robert Griffin asks on Stack Exchange about finding the distance between HP1 binding sites and genes in Drosophila melanogaster.  We can get a rough idea with some public chromatin immunoprecipitation data, R and the wonderful ... [Read more...]

Everybody loves a good map. Even if you don’t have any reason to make one, your boss will love it when you do, so check this out and get yourself a pay rise (possibly). First, this set of diagrams via … Continue reading → [Read more...]