simmer 2.0: a performance boost & revised syntax

October 22, 2014
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simmer 2.0: a performance boost & revised syntax

It was very clear that the performance of the first simmer version was lagging behind. The 2.0 release introduces a C++ based engine and comes with a significant performance boost versus the previous version. While the performance can always be further improved I’m currently quite satisfied with it. Future refinement of the code base will The post

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translate2R: Migrate SPSS scripts to R at the push of a button

October 22, 2014
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translate2R: Migrate SPSS scripts to R at the push of a button

After their presentation at the international “user!” conference, data analysis specialist eoda starts the public alpha testing of translate2R. With the start of alpha testing the innovative migration solution...

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How the MKL speeds up Revolution R Open

October 22, 2014
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How the MKL speeds up Revolution R Open

by Andrie de Vries Last week we announced the availability of Revolution R Open, an enhanced distribution of R. One of the enhancements is the inclusion of high performance...

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Prediction intervals too narrow

October 21, 2014
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Prediction intervals too narrow

Almost all prediction intervals from time series models are too narrow. This is a well-known phenomenon and arises because they do not account for all sources of uncertainty. In...

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7 new R jobs (for October 21st 2014)

October 21, 2014
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7 new R jobs (for October 21st 2014)

This is the bimonthly R Jobs post (for 2014-10-21), 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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Example 2014.12: Changing repeated measures data from wide to narrow format

October 21, 2014
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Example 2014.12: Changing repeated measures data from wide to narrow format

Data with repeated measures often come to us in the "wide" format, as shown below for the HELP data set we use in our book. Here we show...

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Modeling Plenitude and Speciation by Jointly Segmenting Consumers and their Preferences

October 21, 2014
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Modeling Plenitude and Speciation by Jointly Segmenting Consumers and their Preferences

In 1993, when music was sold in retail stores, it may have been informative to ask about preference across a handful of music genre. Today, now that the consumer...

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Kernel Density Estimation with Ripley’s Circumferential Correction

October 21, 2014
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Kernel Density Estimation with Ripley’s Circumferential Correction

The revised version of the paper Kernel Density Estimation with Ripley’s Circumferential Correction with Ewen Gallic is now online, on hal.archives-ouvertes.fr/. In this paper, we investigate (and extend) Ripley’s circumference...

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methylKit for bisulfite sequencing data analysis

October 21, 2014
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I have been relying upon methylKit, an R package for my RRBS data analysis. It is one the most highly cited R package for analysing bisulifite sequencing data. It is...

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Easy Clustered Standard Errors in R

October 20, 2014
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Twitter Pop-up Analytics

October 20, 2014
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Twitter Pop-up Analytics

IntroductionSo I've been thinking a lot lately. Well, that's always true. I should say, I've been thinking a lot lately about the blog. When I started this blog I...

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The lapply command 101

October 20, 2014
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The lapply command 101

Next up in our review of the family of apply commands we’ll look at the lapply function, which can be used to loop over the elements of a list...

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Degrees of Choice: A modification of a WSJ graphic

October 20, 2014
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This post uses ggplot2 and rCharts to modify a grouped bar chart that appeared in an article that appeared online on October 19, 2014 in Wall Street Journal’s...

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Learn dplyr with RStudio and Datacamp

October 20, 2014
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Learn dplyr with RStudio and Datacamp

RStudio has teamed up with Datacamp to create a new, interactive way to learn dplyr. Dplyr is an R package that provides a fast, intuitive way to transform data...

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Explore R package connections at MRAN

October 20, 2014
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Explore R package connections at MRAN

Many R scripts depend on CRAN packages, and most CRAN packages in turn depend on other CRAN packages. If you install an R package, you'll also be installing its...

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Tiny Data, Approximate Bayesian Computation and the Socks of Karl Broman

October 20, 2014
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Tiny Data, Approximate Bayesian Computation and the Socks of Karl Broman

Big data is all the rage, but sometimes you don’t have big data. Sometimes you don’t even have average size data. Sometimes you only have eleven unique socks:

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An Attempt At Replicating Flexible Asset Allocation (FAA)

October 20, 2014
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An Attempt At Replicating Flexible Asset Allocation (FAA)

Since the people at Alpha Architect were so kind as to feature my blog in a post, I figured I’d … Continue reading →

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meteoForecast 0.43: GFS, NAM, and RAP included

October 20, 2014
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meteoForecast 0.43: GFS, NAM, and RAP included

Some months ago I published the meteoForecast package, with functions to download data from the Meteogalicia and OpenMeteo NWP-WRF services. …Sigue leyendo →

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The World We Live In #2: To Study Or To Work

October 19, 2014
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The World We Live In #2: To Study Or To Work

I was getting ready for school and about to wear my uniform when I remembered that our principal had told us not to wear uniforms. So I decided to...

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hts with regressors

October 19, 2014
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hts with regressors

The hts package for R allows for forecasting hierarchical and grouped time series data. The idea is to generate forecasts for all series at all levels of aggregation without...

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Estimating a Beta Regression with The Variable Dispersion in R

October 19, 2014
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Estimating a Beta Regression with The Variable Dispersion in R

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littler 0.2.1

October 19, 2014
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littler 0.2.1

A new maintenance release of littler is available now. The main change are a few updates and extensions to the examples provided along with littler. Several of those continue...

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Tuning Laplaces Demon II

October 19, 2014
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Tuning Laplaces Demon II

I am continuing with my trying all algorithms of Laplaces Demon. It is actually quite a bit more work than I expected but I do find that some of...

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Removing Uncited References in a Tex File (with R)

October 18, 2014
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Removing Uncited References in a Tex File (with R)

Last week, with @3wen, we were working a the revised version of our work on smoothing densities of spatial processes (with edge correction). Usually, once you have revised the...

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Find the last day of the month

October 17, 2014
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Find the last day of the month

I have different sets of monthly data that I want to align and evaluate once a month. The different sources report the timestamp of the monthly data differently –...

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Statistics doesn’t have to be so hard: simulate!

October 17, 2014
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My second-favourite keynote from yesterday's Strata Hadoop World conference was this one, from Pinterest's John Rauser. To many people (especially in the Big Data world), Statistics is a series...

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Add An Export Module to Shiny-app for Highcharts Figure

October 17, 2014
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Highcharts is the best JavaScript chart library, I feel. By default, there is an export button which can let you save the interactive figure to PNG, JPEG, PDF and...

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Design A Bilingual Shiny Application

October 17, 2014
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(This article was first published on Category: R | Huidong Tian's Blog, and kindly contributed to R-bloggers) It’s a common requirement that your Shiny application should be bilingual. I...

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R User Groups and "after hours" Creativity

October 16, 2014
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R User Groups and "after hours" Creativity

by Joseph Rickert There is something about R user group meetings that both encourages, and nourshies a certain kind of "after hours" creativity. Maybe it is the pressure of...

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