[This is a guest post by Eric-Jan Wagenmakers and Quentin Gronau introducing the RGraphCompendium. Click here to see the full compendium!] Every data analyst knows that a good graph is worth a thousand words, and perhaps a hundred tables. But how should one create a good, clean graph? In R, ... [Read more...]

Inspired by this tweet, I wanted to try to do something similar in JavaScript. Very cool hack: Extracting the original data from a heatmap image with R vector ops #rstats http://t.co/Lbi6FCXdrI pic.twitter.com/LCabkMGjXY— Gregory Piatetsky (@kdnugge... [Read more...]

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Tableau 9.0 will be released soon.Tableau 8 already integrates with some R functionality, but 9.0 actually allows direct connection to R data files.Tableau continues to remove friction between itself and R, further justifying its superior Gartner ... [Read more...]

Win-Vector LLC is proud to announce the R data science value pack. 50% off our video course Introduction to Data Science (available at Udemy) and 30% off Practical Data Science with R (from Manning). Pick any combination of video, e-book, and/or print-book you want. Instructions below. Please share and Tweet! For 50% ... [Read more...]

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Typically, I log into my remote server/cluster via "ssh -X" and from there launch R program for plotting. But it always shows an error asunable to open connection to X11 display ''after a while, when you want to call functions such as plot(). This is very annoying. So that ... [Read more...]

In case you missed them, here are some articles from February of particular interest to R users. The John M. Chambers Statistical Software Award announcement for 2015. The new R package "distcomp" allows researchers to collaborate on data spread across multiple sites. David Smith's interview with theCUBE on R, data science, ... [Read more...]

I have just been trying to import some data into R. The data were exported from a SQL Server client in tab-separated value (TSV) format. However, reading the data into R the "usual" way produced unexpected results: Those weird characters in the first record... where did they come from? They ... [Read more...]

Over the next week we will cover the basics of how to create your own histograms in R. Three options will be explored: basic R commands, ggplot2 and ggvis. These posts are aimed at beginning and intermediate R users who need an accessible and easy-to-understand resource. Want to learn more? ... [Read more...]

At last Friday's Cologne R user group meeting we welcomed two Northerners from the left and right (or 'right' and 'wrong') side of the Rhine.Using R in Excel via R.NETGünter Faes and Matthias SpixDownload slidesGünter and Michael presented examples of a new R Excel plugin 'Calidris' ... [Read more...]

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I pushed quantmod 0.4-4 to CRAN this weekend.  It adds a getSymbols.yahooj function to pull stock data from Yahoo Finance Japan, and fixes issues in getOptionChain.yahoo and getSymbols.oanda.Changes to the Yahoo Finance and Oanda websites broke the getOptionChain.yahoo and getSymbols.oanda functions, respectively.  I didn’... [Read more...]

So far, I have been preparing composite figures by plotting the data using ggplot2, and then putting the panels together in OmniGraffle or Adobe Illustrator. Of course, every time the data is updated, I would need to go back to the vector editing progr... [Read more...]

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by Andrie de Vries In my previous post, I demonstrated how to get some status of running jobs on a parallel back end. However, I stopped short of actually demonstrating progress bars. In this post I demonstrate how to do this. The StackOverflow question How do you create a progress ... [Read more...]

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