We had an exciting meeting "Japan.R" with many talks on last Saturday.(I should have made an advance notice.) (This is the picture of our venue. Thanks FreakOut!!!)We are so pleased that many participants(over 200!!!) enjoyed the talks and have a great relationship each other in pizza party. ... [Read more...]

by Yanchang Zhao, RDataMining.com RStudio recently ran a series of live webinars on Essential Tools for Data Science with R, but it is inconvenient for people from other time zones to attend. Fortunately, the recordings have been made available online, … Continue reading → [Read more...]

by Tammer Kamel Quandl's Founder About 22 months ago I had the privilege of introducing Quandl to the world on this blog. At that time Quandl had about 2 million datasets and a few hundred users. (And we thought that was fabulous.) Now, at the end of 2014, we have some 12 million datasets ... [Read more...]

09.12.2014 In the new version of Bio7 2.0 i added some new easy to use functions to transfer image data from ImageJ to R. For example, you can now drag a folder of images on the ImageJ-Canvas view, open them memory efficient as a virtual stack in ImageJ and transfer them with ... [Read more...]

[This article was first published on Rmetrics blogs, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your [Read more...]

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The next Cologne R user group meeting is scheduled for this Friday, 12 December 2014.We have an exciting agenda with two talks on Julia and Dynamic Linear Models:Introduction to Julia for R Users Hans Werner BorchersJulia is a high-performance dynamic programming language for scientific computing, with a syntax that is ... [Read more...]

introducing swmap: cartography with complex survey data. this collection of publicly-available r syntax implements granular geographic variation visualizations similar to those seen in the popular press without compromising on survey methodology.thanks to david rae, paul regular, joseph larmarange, djalma pessoa, hadley wickham, thomas lumley, john baumgartner, viviane quintaes, bob ... [Read more...]

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Last night I gave a very short talk (less than 5 minutes) at the Melbourne Analytics Charity Christmas Gala, a combined event of the Statistical Society of Australia, Data Science Melbourne, Big Data Analytics and Melbourne Users of R Network. This is (roughly) what I said. Statisticians seem to go through ... [Read more...]

As in previous years, at about this time, I want to (re)warn unaware ‘Og readers that all links to Amazon.com and more rarely to Amazon.fr found on this blog are actually susceptible to earn me an advertising percentage if a purchase is made by the reader in ... [Read more...]

Well, after talking about it for about a year now, I’ve finally started converting my R course to a YouTube friendly format. Since I’m in the middle of my university R course, the videos don’t quite start at the beginning. I’ll add the beginning 3-5 lectures ... [Read more...]

A colleague needed some help getting Illumina BeadArray gene expression data loaded into R for data analysis with limma. Hopefully whoever ran your arrays can export the data as text files formatted as described in the code below. If so, you can import... [Read more...]

A quick heads-up that this Thursday (December 11), Allen Day from MapR and Bill Jacobs from Revolution Analytics will be live presenting a new webinar, Batter Up! Advanced Sports Analytics with R and Storm. The analysis will be of baseball data, but the webinar will be of interest to anyone interested ... [Read more...]

If you would have invested in 1992 in the DAX ETF - provided it would have been around, of course - you would have earned a decent amount of money.That's the story of the passive guys and in my previous post I'm borrowing a few arguments of this guys t... [Read more...]

This is the second of two posts about the performance characteristics of resampling methods. The first post focused on the cross-validation techniques and this post mostly concerns the bootstrap. Recall from the last post: we have some simulations to evaluate the precision and bias of these methods. I simulated some ... [Read more...]

I come across a lot of strategies on the blogosphere some are interesting some are a complete waste of time but most share a common feature: people developing those strategies do their homework in term of analyzing the return but much less attention is paid to the risk side its ... [Read more...]

I’ve been having a conversation for a while with @kamal_hothi and @aschiff on maps, schools, census, making NZ data available, etc. This post documents some basic steps I used for creating a map on ethnic diversity in schools at the census-area-unit level. This “el quicko” version requires 3 ingredients: ... [Read more...]

In my last post, I questioned whether the fancy Big Data processing tools such as Hadoop and Spark are really necessary for us R users.  My argument was that (a) these tools tend to be difficult to install and configure, especially for non-geeks; (b) the tools require learning new computation ... [Read more...]

Two weeks ago, @mona published an interesting post on her blog, about a difficult question, What’s The Most Common Name In America? There were stats about first names, in the U.S., and last names, too. Those informations are - somehow - easy to get. But usually, it is ... [Read more...]