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Capturing wild widgets with webshot
By hrbrmstr NOTE: you won’t need to use this function if you use the development version of knitr Winston Chang released his webshot package to CRAN this past week. The package wraps the immensely...
View ArticleOver 16 years of R Project history
By David Smith The first official release of R, R version 1.0.0 was released on February 29, 2000. The anniversary was marked on Twitter by Thomas Lumley, a member of R Core Group: 20 leading...
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Dynamic Predictions using Joint Models
By Dimitris Rizopoulos What are Dynamic Predictions In this post we will explain the concept of dynamic predictions and illustrate how these can be computed using the framework of joint models for...
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Mastering R plot – Part 3: Outer margins
By Lionel Hertzog This is the third post in our series Mastering R Plot, in this one we will cover the outer margins. To know more about plot customization read my first and second post. Let’s directly...
View ArticleMachine Learning for Hackers with Debian and Ubuntu
By Daniel.Pocock Data Science and Machine Learning are hot topics at the moment. Many people are considering how to extend their skills into these areas and many solutions have appeared, including full...
View ArticleOver 16 years of R Project history
By David Smith The first official release of R, R version 1.0.0 was released on February 29, 2000. The anniversary was marked on Twitter by Thomas Lumley, a member of R Core Group: 20 leading...
View ArticleClik here to view.
Quick Intro to NMF (the Method and the R Package)
By matloff Nonnegative matrix factorization (NMF) is a popular tool in many applications, such as image and text recognition. If you’ve ever wanted to learn a little bit about NMF, you can do so right...
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Explore with Shiny the impact of sample size on “p-charts”
By Peter’s stats stuff – R Control charts I wanted to help explore the implications of changing sample size for a quality control process aimed at determining the defect rate in multiple sites. Defect...
View ArticleBook review: Storytelling With Data
By Martin Monkman The Sabermetric bookshelf, #4 One of the great strengths of R is that there are some robust (and always improving) packages that facilitate great data visualization and tabular...
View ArticleComputerworld’s 10-step tutorial for creating interactive election maps with R
By David Smith With the US election season in full swing, you can hardly browse a newspaper website without seeing some kind of map showing election or polling results, like this one from the New York...
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R: microbenchmark, reshaping big data features
By jdm pacman::p_load(data.table, microbenchmark ) train train_mat f1 f2 microbenchmark(f1(),f2(),times=10) Related To leave a comment for the author, please follow the link and comment on their blog:...
View ArticleRblpapi ‘Release Candidate’ 0.3.2.5
By Thinking inside the box We have a made numerous changes to Rblpapi since the previous release 0.3.2 in early December. You can see the commits, or look at the ChangeLog or NEWS.Rd to get an indea of...
View ArticleWOMBAT 2016 Wrap Up
By njtierney – rbloggers A few weeks ago I spoke at the Workshop Organized by Monash Business Analytics Team (WOMBAT), held in the Melbourne Zoo (!) on Thursday and Friday the 18th and 19th February....
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R: Remove constant and identical features programmatically
By jdm ##### Removing constant features cat("n## Removing the constants features.n") for (f in names(train)) { if (length(unique(train[[f]])) == 1) { cat(f, "is constant in train. We delete it.n")...
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A new website for MilanoR
By MilanoR R is growing faster, our community is growing as well: that’s why we provided MilanoR with a brand new website, more functional to find our R resources. So, what’s new in MilanoR.net? Check...
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R: Setup a grid search for xgboost (!!)
By jdm I find this code super useful because R’s implementation of xgboost (and to my knowledge Python’s) otherwise lacks support for a grid search: # set up the cross-validated hyper-parameter search...
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preserving frequencies without resampling
By xi’an An interesting question came up on X validated a few days ago: given a probability vector p=(p¹,…,p⁷), is there a way to pick 5 values in {1,…,7} without replacement and still preserve the...
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preserving frequencies without resampling
By xi’an (This article was originally published at R – Xi’an’s Og, and syndicated at StatsBlogs.) An interesting question came up on X validated a few days ago: given a probability vector p=(p¹,…,p⁷),...
View ArticleIn case you missed it: February 2016 roundup
By David Smith In case you missed them, here are some articles from February of particular interest to R users. A tutorial on presenting interactive versions of R maps in PowerBI. An animation of...
View ArticleIn case you missed it: February 2016 roundup
By David Smith In case you missed them, here are some articles from February of particular interest to R users. A tutorial on presenting interactive versions of R maps in PowerBI. An animation of...
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