Ford uses R for data-driven decision making

November 21, 2014
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Mike Cavaretta is Ford Motor Company’s Chief Data Scientist, and was tasked by the incoming CEO Alan Mulally to help change the culture so that "important decisions within the company had to be based on data". In a feature article at Dataconomy, he reveals that R is a big part of this revolution at Ford: On the statistical side,...

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Visualization of probabilistic forecasts

November 21, 2014
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Visualization of probabilistic forecasts

This week my research group discussed Adrian Raftery’s recent paper on “Use and Communication of Probabilistic Forecasts” which provides a fascinating but brief survey of some of his work...

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Synchronization for R with the flock Package

November 20, 2014
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Have you tried synchronizing R processes? I did and it wasn’t straightforward. In fact, I ended up creating a new package – flock. One of the improvements I did...

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Tips & Tricks 5: Extracting Classifiers Using Substring

November 20, 2014
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Today's exercise in another easy one, and is inspired by a question from Ariel Marcy of University of Queensland.Exercise 5 - How to extract classifiers from names of specimens.Well-organised...

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Geomorph update 2.1.2 Now Available!

November 20, 2014
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Geomorph update 2.1.2 Now Available!

Geomorph users,We have uploaded version 2.1.2 to CRAN. The windows and mac binaries have been compiled and the tarball is available.Version 2.1.2 comes with some small changes and new features: New...

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RNA-seq Data Analysis Course Materials

November 20, 2014
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Last week I ran a one-day workshop on RNA-seq data analysis in the UVA Health Sciences Library. I set up an AWS public EC2 image with all the necessary...

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LA R meetup – January 21: RStudio’s Shiny with Joe Cheng

November 20, 2014
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At this meetup we’re fortunate to have RStudio’s lead developer Joe Cheng flying in from...

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Partying R Style with Sqor Sports, R on Azure, and data.table

November 20, 2014
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Partying R Style with Sqor Sports, R on Azure, and data.table

by Joseph Rickert We usually have a pretty good time at the monthly Bay Area useR Group (BARUG) meetings, but this month's meeting was a bit more of a...

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Stacking files made easy

November 20, 2014
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Every campaign cycle I usually do similar things, go to a repository, download a bounce of data, merge and store them to an existing RData file for posterior analysis....

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R Debugging GUI Improvements for Bio7

November 20, 2014
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20.11.2014 In my last post i presented the first version of a debugging GUI for R in Bio7 which is just a visual wrapper for the default R debugging...

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The three types of Reddit posts, and how they make it to the front page

November 19, 2014
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The three types of Reddit posts, and how they make it to the front page

Todd Schneider's blog post on solving the traveling salesman problem with R hit the front page of reddit.com. This is a big deal: front-page placement on the popular social...

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The ensurer package (validation inside pipes)

November 19, 2014
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The ensurer package (validation inside pipes)

Guest post by Stefan Holst Milton Bache on the ensurer package. If you use R in a production environment, you have most likely experienced that some circumstances change in ways that...

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Trading The Odds Volatility Risk Premium: Addressing Data Mining and Curve-Fitting

November 19, 2014
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Trading The Odds Volatility Risk Premium: Addressing Data Mining and Curve-Fitting

Several readers, upon seeing the risk and return ratio along with other statistics in the previous post stated that the … Continue reading →

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Rabbit: (another) introduction to R

November 19, 2014
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Dear R users, Quantide is proud to announce its second

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Count Your BLAS-ings

November 19, 2014
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Count Your BLAS-ings

One nice thing about open-source software is that users often have a lot of choices.  Such is the case with R, for instance the thousands of contributed packages available...

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Excel spreadsheets are hard to get right

November 18, 2014
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Excel spreadsheets are hard to get right

Any practicing data scientist is going to eventually have to work with a data stored in a Microsoft Excel spreadsheet. A lot of analysts use this format, so if...

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R / Finance 2015 Call for Papers

November 18, 2014
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Earlier today, Josh send the text below to the R-SIG-Finance list, and I updated the R/Finance website, including its Call for Papers page, accordingly. We are...

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scheduleR: a web interface to schedule .R & .Rmd scripts

November 18, 2014
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scheduleR: a web interface to schedule .R & .Rmd scripts

scheduleR is an attempt to create an intuitive interface for scheduling R and Rmarkdown scripts. Especially for the latter, I find the lack of a good scheduling, logging and...

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Reinterpreting Lee-Carter Mortality Model

November 18, 2014
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Reinterpreting Lee-Carter Mortality Model

Last week, while I was giving my crash course on R for insurance, we’ve been discussing possible extensions of Lee & Carter (1992) model. If we look at the...

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R/Finance 2015 Call for Papers

November 18, 2014
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Call for Papers:R/Finance 2015: Applied Finance with RMay 29 and 30, 2015University of Illinois at ChicagoThe seventh annual R/Finance conference for applied finance using R will be held on...

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LA R Meetup Summary: Highlights from useR! 2014 – Part 2

November 18, 2014
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LA R Meetup Summary: Highlights from useR! 2014 – Part 2

Last week the LA R meetup featured another round of 5 speakers each highlighting a...

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Visualizing (generalized) linear mixed effects models, part 2 #rstats #lme4

November 18, 2014
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Visualizing (generalized) linear mixed effects models, part 2 #rstats #lme4

In the first part on visualizing (generalized) linear mixed effects models, I showed examples of the new functions in the sjPlot package to visualize fixed and random effects (estimates...

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Introduction to Revolution R Enterprise For Big Data Analytics on datacamp.com

November 18, 2014
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by Jeremy Reynolds Senior R Trainer, Revolution Analytics Last week, Revolution Analytics released its first massive open, online course through a partnership with datacamp.com: Introduction to Revolution R Enterprise...

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rmarkdown: Alter Action Depending on Document

November 18, 2014
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rmarkdown: Alter Action Depending on Document

Can I see a show of hands for those who love rmarkdown? Yeah me too. One nifty feature is the ability to specify various document prettifications in the YAML...

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11 new R jobs (for November 18th 2014)

November 18, 2014
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11 new R jobs (for November 18th 2014)

This is the bimonthly R Jobs post (for 2014-11-18), based on the R-bloggers’ sister website: R-users.com. If you are an employer who is looking to hire people from the R community, please visit this link...

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dplyr tour. 3 next dates

November 18, 2014
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dplyr tour. 3 next dates

I'm back on the road for 3 dplyr talks. On thursday I'll be in Lyon for the RLyon meetup. Next week, I'll be...

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RcppAnnoy 0.0.3

November 18, 2014
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Hours after the initial blog post announcing the first release of the new package RcppAnnoy, Qiang Kou sent us a very nice pull request adding mmap support in...

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MilanoR meeting is coming

November 18, 2014
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MilanoR staff is happy to announce the next MilanoR mee

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First steps with ChainLadder: Import triangle from Excel into R

November 18, 2014
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First steps with ChainLadder: Import triangle from Excel into R

Taking the first step is often the hardest: getting data from Excel into R. Suppose you would like to use the ChainLadder package to forecast future claims payments...

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