Thanks to a nice post by Meghan Duffy on the Dynamic Ecology blog (How do you make figures?), we have some empirical evidence that many figures made in R by ecologists are secondarily edited in other programs including MS Powerpoint, Adobe Illustrator, Inkscape, and Photoshop. This may not be advisable* for two reasons: reproducibility and bonus learning. Reproducibility R...
Anscombe’s quartet comprises four datasets that have nearly identical simple statistical properties, yet appear very different when graphed. Each dataset consists of eleven (x,y) points. They were
“The amount of information available in the internet grows every day” thank you captain Obvious! by now even my grandma is aware of that!. Actually, the internet...
RMySQL version 0.10.2 has appeared on CRAN. This is a maintenance release to streamline the build process on various platforms. Most importantly,...
It was a pleasure to appear live on theCUBE last week while attending the Strata conference. In my interview with Jeff Kelly and John Furrier, I talked about the...
Win-Vector LLC’s Nina Zumel and John Mount are proud to announce their new data science video course Introduction to Data Science is now available on Udemy. We designed the...
by Marek Gagolewski, Maciej Bartoszuk, Anna Cena, and Jan Lasek (Rexamine). Introduction In a recent blog post we explained how we managed to set up a working Hadoop environment...
Dici che il fiume trova la via al mare e come il fiume giungerai a me (Miss Sarajevo, U2) One way to calculate approximately the area of some place is to...
Consider the following dataset, with (only) ten points x=c(.4,.55,.65,.9,.1,.35,.5,.15,.2,.85) y=c(.85,.95,.8,.87,.5,.55,.5,.2,.1,.3) plot(x,y,pch=19,cex=2) We want to get – say – two clusters. Or more specifically, two sets of observations, each of...
RStudio’s data viewer provides a quick way to look at the contents of data frames and other column-based data in your R environment. You invoke it by clicking on...
by Andrie de Vries R has strong support for parallel programming, both in base R and additional CRAN packages. For example, we have previously written about foreach and parallel...
The other day I got stuck working with a huge data set using data.table in R. It took me a little while to realise that I had...
I spent last week at the Strata 2015 Conference in San José, California. As always, Strata made for a wonderful conference to catch up on the latest developments on...
I often find myself giving people suggestions about how to learn R, so I decided to put together a flow chart. This is geared toward typical psychology or cognitive...
No revelations here, just a little R tip for generating more readable documents. There are times when I want to show code in a document, but I don’t want...
RStudio’s code editor includes a set of lightweight Vim key bindings. You can turn these on in Tools | Global Options | Code | Editing: For those not familiar,...
We’re busy at work on the next version of RStudio (v0.99) and this week will be blogging about some of the noteworthy new features. If you want to try...
I had the great pleasure of speaking to the Department of Statistics and Actuarial Science at Simon Fraser University on last Friday to share my career advice with its...
I’m sure we’ve all heard about diversified stock and bond portfolios. In its simplest, most diluted form, it can be … Continue reading →
We are glad to announce the launch of DataScience.Vegas as a blog that aggregates all the events, news and information impacting the Las Vegas data science community. Our community has...
Hadoop is being widely used for processing big data and Neo4j is a popular open-source graph database. When doing social network analysis on big data, a “natural” thought is...
This is the bimonthly post (for 2015-02-23) for new R Jobs from R-users.com. If you are an employer who is looking to hire people from the R community, please visit this link to post a new...
Introduction The drat package was released earlier this month, and described in a first blog post. I received some helpful feedback about what works and what doesn't. For...
In the context of -means, we want to partition the space of our observations into classes. each observation belongs to the cluster with the nearest mean. Here “nearest” is...
In Bayesian Approaches to Clinical Trials and Health-Care Evaluation (David J. Spiegelhalter, Keith R. Abrams, Jonathan P. Myles) they mention that an non informative prior should be uniform over the...
Sometimes it is useful to export the output of a long-running R command. For example, you might want to run a time consuming regression just before...
Over the last few days I put together a new package RcppAPT which interfaces the C++ library behind the awesome apt, apt-get, apt-cache, ... commands and their GUI-based...
For a project I’m working on, I needed to access residential electricity rates and associated coordinate information (lat/long) for locations in the US. After a little searching, I found...
Plotly: collaborative, publication-quality graphing.
