Introducing Radiant: A shiny interface for R

May 3, 2015
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Radiant is a platform-independent browser-based interface for business analytics in R, based on the Shiny package. Key features Explore: Quickly and easily summarize, visualize, and analyze your data Cross-platform: It runs in a browser on Windows, Mac, and Linux Reproducible: Recreate results at any time and share work with others as a state file or an

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Survival Analysis With Generalized Additive Models : Part III (the baseline hazard)

May 2, 2015
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Survival Analysis With Generalized Additive Models : Part III (the baseline hazard)

In the third part of the series on survival analysis with GAMs we will review the use of the baseline hazard estimates provided by this regression model. In contrast...

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Survival Analysis With Generalized Models: Part II (time discretization, hazard rate integration and calculation of hazard ratios)

May 2, 2015
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Survival Analysis With Generalized Models: Part II (time discretization, hazard rate integration and calculation of hazard ratios)

In the second part of the series we will consider the time discretization that makes the Poisson GAM approach to survival analysis possible. Consider a set of s individual...

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Rcpp 0.11.6

The new release 0.11.5 of Rcpp arrived on the CRAN network for GNU R yesterday; the corresponding Debian package has also been uploaded. Rcpp has become the most popular...

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RcppArmadillo 0.5.100.1.0

A new minor release 5.100.1 of Armadillo was released by Conrad yesterday. Armadillo is a powerful and expressive C++ template library for linear algebra aiming towards a...

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Should I use premium Diesel? Result: No

May 2, 2015
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Should I use premium Diesel? Result: No

A while ago I had a post: 'Should I use premium Diesel? Setup. Since that time the data has been acquired. This post describes the results.DataData is registered by me...

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Revolution R Open 8.0.3 now available

May 1, 2015
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Revolution R Open 8.0.3 now available

Revolution R Open 8.0.3 is now available for download for Windows, OS X, Red Hat, Ubuntu and OpenSUSE. This release includes seveal new features: it upgrades RRO to the...

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RStudio v0.99 Preview: Graphviz and DiagrammeR

May 1, 2015
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RStudio v0.99 Preview: Graphviz and DiagrammeR

Soon after the announcement of htmlwidgets, Rich Iannone released the DiagrammeR package, which makes it easy to generate graph and flowchart diagrams using text in a Markdown-like syntax. The package...

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Survival Analysis With Generalized Additive Models : Part I (background and rationale)

May 1, 2015
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Survival Analysis With Generalized Additive Models : Part I (background and rationale)

After a really long break, I’d will resume my blogging activity. It is actually a full circle for me, since one of the first posts that kick started this blog,...

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Shiny: Officer Involved Shootings

May 1, 2015
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US Officer Involved Shootings Mar-Apr 2015 with Shiny Now everyone can be a data analyst with RStudio’s Shiny package. Fellow R programmer and Las Vegas import, Steve Wells, has created...

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rstanmulticore: A cross-platform R package to automatically run RStan MCMC chains in parallel

May 1, 2015
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*** This work has been supported by a grant from the Spencer Foundation (#201400002). The views expressed are those of the author and do not necessarily reflect those of...

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How large vectors in R might be stored compactly

April 30, 2015
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How large vectors in R might be stored compactly

Vectors in R can currently have elements of two sizes — 8-byte double-precision floating-point elements for `numeric’ vectors, or 4-byte elements for `integer’ or `logical’ vectors.  You can also have vectors whose...

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Upcoming talks about jsonlite and mongolite

April 30, 2015
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Upcoming talks about jsonlite and mongolite

This summer I will be giving an invited talk at the annual French R Meeting in Grenoble as well as a shorter talk...

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Dockerizing a Shiny App

April 30, 2015
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After a long pause of more than four months, I am finally back to post here. Unfortunately, many commitments prevented me keep posting, but coming back, i changed the...

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Le Monde puzzle [#909]

April 30, 2015
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Le Monde puzzle [#909]

Another of those “drop-a-digit” Le Monde mathematical puzzle: Find all integers n with 3 or 4 digits an single interior zero digit, such that removing that zero digit produces...

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Introduction to Applied Econometrics With R

April 30, 2015
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I came across a January post from David Smith at Revolution Analytics, in his Revolutions blog. It's titled, An Introduction to Applied Econometrics With...

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The First NY R Conference

April 30, 2015
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The First NY R Conference

by Joseph Rickert Last Friday and Saturday the NY R Conference briefly lit up Manhattan's Union Square neighborhood as the center of the R world. You may have caught...

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EARL2015 Conference Agenda (London) Announced

April 30, 2015
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EARL2015 Conference Agenda (London) Announced

  The full agenda for the London EARL2015 Conference has now been announced.  The conference focusses on the real world commercial usage and business applications of the R Language...

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Circle packing in R (again)

April 29, 2015
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Circle packing in R (again)

Back in 2010 I posted some R code for circle packing. Now, just five years later, I've ported the code to Rcpp and created a little package which...

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Wakefield: Random Data Set (Part II)

April 29, 2015
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Wakefield: Random Data Set (Part II)

This post is part II of a series detailing the GitHub package, wakefield, for generating random data sets. The First Post (part I) was a test run to gauge...

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Modeling the Latent Structure That Shapes Brand Learning

April 29, 2015
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Modeling the Latent Structure That Shapes Brand Learning

What is a brand? Metaphorically, the brand is the white sphere in the middle of this figure, that is, the ball surrounded by the radiating black cones. Of course,...

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the most patronizing start to an answer I have ever received

April 29, 2015
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the most patronizing start to an answer I have ever received

Another occurrence of a question on X validated where the originator (primitivus petitor) was trying to get an explanation without the proper background. On either Bayesian...

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Visualizing fits, inference, implications of (G)LMMs with Jaime Ashander

April 29, 2015
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A couple of weeks at the Davis R Users’ Group, Jaime Ashander gave a presentation on and visualizing and diagnosing (G)LMMs in R. Here’s the...

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Turning Data Into Awesome With sqldf and pandasql

April 29, 2015
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Turning Data Into Awesome With sqldf and pandasql

Both R and Python possess libraries for using SQL statements to interact with data frames. While both languages have native facilities for manipulating data, the sqldf and pandasql provide a simple...

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Benchmarks of RRO on OSX and Ubuntu

April 29, 2015
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Benchmarks of RRO on OSX and Ubuntu

Bay Area engineer Vineet Abraham recently ran some benchmarks for Revolution R Open (RRO) running on Mac OS X and on Ubuntu. Thanks to the multi-threaded processing capabilites of...

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See R in action at the BUILD conference

April 29, 2015
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See R in action at the BUILD conference

Build 2015, the Microsoft conference which brings around 5,000 developers to the Moscone Center in San Francisco, begins tomorrow. The conference is sold out, but you can livestream the...

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Finance-YahooQuote 0.25 hotfix

April 29, 2015
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A hotfix release for the Finance-YahooQuote Perl module on CPAN is now available. Available Yahoo! Finance decided to change the base URL. My thanks to Nicola...

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Twelve Graphs & Dashboards You Should See On Climate Change, Science, & Public Opinion

April 28, 2015
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Twelve Graphs & Dashboards You Should See On Climate Change, Science, & Public Opinion

Plotly has teamed up with The White House on President Obama’s Climate Data Initiative to explore and explain climate trends. This post is our first contribution. You’ll...

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choroplethrZip v1.3.0: easier demographics, national maps

April 28, 2015
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choroplethrZip v1.3.0: easier demographics, national maps

Introduction choroplethr v3.0 is now available on github. You can get it by typing # install.packages("devtools") library(devtools) install_github('arilamstein/[email protected]') Version 1.3.0 has two new features: Data frame df_zip_demographics contains eight...

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