R is an open-source software package and rapidly increases its popularity in both industry and academics. Google trend is probably the best tool to show you how popular R is since it allows us to rank the search interest among five major statistical software packages. You can clearly observe that ... [Read more...]

R-Fiddle is a great tool to develop and test  code segments or complete R programs.   By accessing the R-Fiddle web site users have a fully functioning R console,  code editor and discussion board all in one place.  If a user has code uploaded that has been designated to share,  other ... [Read more...]

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A little while ago I demonstrated how to extract FASTQ from MinION FAST5 files using Rscript and the Linux command line. In that article, I described how to extract the different FASTQ data using a parameter: # 2D is the default invisible(apply(array(f5files), 1, printfastq)) # template invisible(apply(array(... [Read more...]

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Clipping polygons is a basic GIS task. It involves removing unneeded polygons outside of an area of interest. For example, you might want to study all local authorities (LADs) in the Yorkshire and the Humber region but can only obtain shapefiles that contain all the LADs in the UK. Removing ... [Read more...]

Turning a simple machine learning model in R into an api just became a whole lot easier. Embarrisingly easy actually, thanks to a lovely package called plumber. Install Assuming that you have devtools installed, all you need to do is type the following: library(devtools) install_github("trestletech/plumber") library(... [Read more...]

O gráfico mostra a utilização da hashtag #JeSuisCharlie no twitter no dia 7 de Janeiro de 2015. Tweets vindo principalmente da Europa mas de maneira geral o mundo inteiro estava mostrando solidariedade as vítimas e usando a Hashtag. [Read more...]

Last week I came across a graphic that plots changes in the treasury yield curve from 1982 through 2012. For those unfamiliar, the yield curve shows the level of interest rates available to investors at a series of times to maturity or terms. I won't go into too much detail here, but ... [Read more...]

Are you headed to Strata? It’s just around the corner! We particularly hope to see you at R Day on October 15, where we will cover a raft of current topics that analysts and R users need to pay attention to. The R Day tutorials come from Hadley Wickham, Winston ... [Read more...]

Just a quick heads-up that I'll be presenting with Neera Talbert (VP Professional Services, Revolution Analytics) in a free webinar on Tuesday, July 22 on Applications in R: Success and Lessons Learned from the Marketplace. I'll describe several R applications from well-known companies (some of which can be seen in the ... [Read more...]

Let's say you have a whole lot of csv files in your working directory.  By some convenient act of divine grace they also happen to have the same column structures.  Reading them into R can be a slow matter as … Continue reading → [Read more...]

I recently saw a post about something called ValidR and as somebody with a long standing professional interest in language validation immediately read the article and referenced links. I was disappointed to find that what was being validated was the installation, not the behavior of the implementation. In the context ... [Read more...]

The R statistical software is my preferred statistical package for many reasons. It’s mature, well-supported by communities such as Stack Overflow, has programming abilities built right in, and, most-importantly, is completely free (in both senses) so that anyone can reproduce and check your analyses. R is extremely comprehensive in ... [Read more...]

At the end of March Google released a new version of the Chart Tools API with new options for point shapes and line brushes. The arguments are called pointShape and lineDashStyle and can be set directly via googleVis. We published googleVis 0.5.2 on CR... [Read more...]

Prize4Life, and NEALS are proud to announce the launch of the Pooled Resources Open Access ALS Clinical Trial (PRO-ACT) database. It is a database of ALS clinical trials and [Read more...]

This workshop is aimed at scientist/practitioners that are interested in analyzing complex datasets by fitting linear mixed models, particularly users with experience in [Read more...]

Mango Solutions invite presentations for the EARL (Effective Applications of the R Language) Conference which will be held in London on the 16-17th September 2014. The EARL [Read more...]

I just wanted to plug for three classical books on statistical graphics that I really enjoyed reading. The books are old (that is, older than me) but still relevant and together they give a sense of the development of exploratory graphics in general and the graphics system in R specifically ... [Read more...]

When working with raster datasets I often encounter limitations caused by the large size of the files. I thus wrote up a little R function that invokes gdal_translate which would split the raster into parts.The screenshot to the left shows a raster in QGIS that was split into ... [Read more...]