September 2013

R tips for moderately large data

September 16, 2013 | Robert

Some useful tips recently featured on r-bloggers and originally posted at Mollie’s Research Blog are worth reading. I say moderately large because I don’t really believe there is such a thing as big data (and it looks like Mollie doesn’t … Continue reading → [Read more...]

Putting the R in Cloudera and Hortonworks Hadoop

September 16, 2013 | David Smith

Datanami interviews Revolution Analytics' Bill Jacobs about the upcoming Revolution R Enterprise 7, which will be available later this year. A key feature of this release is that that the big-data predictive analytics R functions in the ScaleR package will run on data situated in a Hadoop cluster, and use the ... [Read more...]

R GIS: Polygon Intersection with gIntersection{rgeos}

September 16, 2013 | Kay Cichini

A short tutorial on doing intersections in R GIS. gIntersection{rgeos} will pick the polygons of the first submitted polygon contained within the second poylgon - this is done without cutting the polygon's edges which cross the clip source polygon. For the function that I use to download the example ... [Read more...]

Batch Downloading Zipped Shapefiles with R

September 16, 2013 | Kay Cichini

Here's a function I use to download multiple zipped shapefiles from url and load them to the workspace:URLs "http://gis.tirol.gv.at/ogd/umwelt/wasser/wis_tseepeicher_pl.zip")url_shp_to_spdf require(rgdal) wd td setwd(td) temp download.file(URL, temp) unzip(temp) shp lyr ... [Read more...]

SABR calibration on Shiny

September 16, 2013 | teramonagi

As you already know(if you often use R!!), Shiny allows us to create web applications in R easily. It doesn't require the knowledge of HTML, CSS, javascript, I mean, we don't need to write HTML, CSS and javascript directly to create web application.The... [Read more...]

Rstudio starts to codefold markdown

September 16, 2013 | steve

Rstudio is a great tool for working with R and R scripts. And Markdown is a great way to write even complex, reproducible documents in plain text. So they make a great combination. BUT: before when writing markdown in rstudio, you had to write “—-” after your headings to get ... [Read more...]

Laplace the Bayesianista and the Mass of Saturn

September 15, 2013 | Neil Gunther

I'm reviewing Bayes' theorem and related topics for the upcoming GDAT class. In its simplest form, Bayes' theorem is statement about conditional probabilities. The probability of A, given that B has occurred, is expressed as: \begin{equation} \Pr(A|B) = \dfrac{\Pr(B|A)\times\Pr(A)}{\Pr(B)} \label{... [Read more...]

RProtoBuf 0.3.1

September 15, 2013 | Thinking inside the box

Two months to the day after the previous 0.3.0 release of RProtoBuf, we are happy to announce a maintenance release 0.3.1 which has now arrived on CRAN. RProtoBuf provides GNU R bindings for the Google Protobuf data encoding library used and release... [Read more...]

Network visualization – part 3: Hive plots

September 15, 2013 | Vessy

In the third part of “how to quickly visualize networks directly from R” series, I’ll write about the hive plots and “HiveR” package. The concept of hive plots is fundamentally different from the Cytoscape and Gephi plots. Cytoscape and Gephi … Continue reading → [Read more...]

Census Atlas Japan

September 15, 2013 | Alex Singleton - R

The 2011 Census Open Atlas project has been put on hold recently as various other research projects have intervened - more on these soon. However, over the summer  Chris Brunsdon and I have taken a research trip to Ritsumeikan University (Japan) where we visited Keiji Yano and Tomoki Nakaya. As part ... [Read more...]

paste, paste0, and sprintf

September 14, 2013 | tylerrinker

I find myself pasting urls and lots of little pieces together lately. Now paste is a standard go to guy when you wanna glue some stuff together. But often I find myself pasting and getting stuff like this: Rather than … Continue reading → [Read more...]

Mixed models; Random Coefficients, part 2

September 14, 2013 | Wingfeet

Continuing from random coefficients part 1, it is time for the second part. To quote the SAS/STAT manual 'a random coefficients model with error terms that follow a nested structure'. The additional random variable is monthc, which is a factor con... [Read more...]

Monty Hall (oh no, not again)

September 13, 2013 | arthur charpentier

Quite frequently, someone on the internet discovers the Monty Hall paradox, and become so enthusiastic that it becomes urgent to publish an article – or a post – about it. The latest example can be http://www.bbc.co.uk/news/magazine-24045598. I won’t blame them, I did the same a ... [Read more...]

BCEA in UseR!

September 13, 2013 | Gianluca Baio

In a recent post, I had hinted at big news for BCEA $-$ I thought it was pretty much a done deal, but because it wasn't yet set in stone, I didn't want to jinx it...But now I've sorted all the details with Springer, who have asked me to ... [Read more...]
1 4 5 6 7 8 11

Never miss an update!
Subscribe to R-bloggers to receive
e-mails with the latest R posts.
(You will not see this message again.)

Click here to close (This popup will not appear again)