Custom Gridlines and Line Guides in R/ggplot Charts

January 2, 2015
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Custom Gridlines and Line Guides in R/ggplot Charts

In the last quarter of last year, I started paying more attention to the use of custom grid lines and line guides in charts I’ve been developing for the Wrangling F1 Data With R book. The use of line guides was in part inspired by canopy views from within the cockpit of one of the

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An experience of EARL

January 2, 2015
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An experience of EARL

Coordinates: 2014 September 15-17 in the London borough of #rstats. 15th, evening I had just the right number of R bugs so that I could walk to the drinks and...

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Video: H2O Talks by Trevor Hastie and John Chambers

January 2, 2015
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by Joseph Rickert In a recent post, where I presented some R related highlights of November's H20 World conference, I singled out and described talks by Trevor Hastie and...

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Querying the Bitcoin blockchain with R

January 2, 2015
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Querying the Bitcoin blockchain with R

The crypto-currency Bitcoin and the way it generates “trustless trust” is one of the hottest topics when it comes to technological innovations right now. The way Bitcoin transactions always...

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A weird and unintended consequence of Barr et al’s Keep It Maximal paper

January 2, 2015
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Barr et al's well-intentioned paper is starting to lead to some seriously weird behavior in psycholinguistics! As a reviewer, I'm seeing submissions where people take the following approach:1. Try...

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2014 highlight: Statistical Learning course by Hastie & Tibshirani

January 1, 2015
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2014 highlight: Statistical Learning course by Hastie & Tibshirani

What I like most about the R and Python developer and user communities, is their incredible openness and generosity. One of the finest examples in the past year was...

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Change Point Detection in Time Series with R and Tableau

January 1, 2015
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Change Point Detection in Time Series with R and Tableau

Dashboard for comparing different algorithms for change point detection on artificial...</p><p><a href=Read more »

Germans used to have more Sex in Summer!

January 1, 2015
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Germans used to have more Sex in Summer!

Wow – what a headline … okay, I admit it’s phrased quite sensational given that it anticipates just one possible interpretation of increasingly more births around summer / autumn...

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Happy New Year! A look at the top posts from 2014.

January 1, 2015
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Happy New Year everyone! Another year has come and gone, and this blog has just entered its seventh year of publication. (Once again, I missed the anniversary back on...

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Why Backtesting On Individual Legs In A Spread Is A BAD Idea

December 31, 2014
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Why Backtesting On Individual Legs In A Spread Is A BAD Idea

So after reading the last post, the author of quantstrat had mostly critical feedback, mostly of the philosophy that prompted … Continue reading →

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R in Nature, Mashable

December 31, 2014
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R in Nature, Mashable

R was recently the subject of a feature article in the prestigious science magazine Nature: Programming tools: Adventures with R. Besides being free, R is popular partly because it...

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Interactive Simple Networks

December 31, 2014
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Interactive Simple Networks

This post isn't anything new in terms of analysis, but just a cooler look at a previous post.  I looked at board members of large companies in a previous...

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digest 0.6.8

December 31, 2014
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Release 0.6.8 of digest package is now on CRAN and will get to Debian shortly. This release opens the door to also providing the digest functionality at the C...

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DataVis with Plot.ly (@plotlygraphs) – Meetup Summary

December 30, 2014
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2014-12-31 15_11_12-Clipboard

It pains me to admit it, but even though I had visited their site, created...

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SAS is #1…In Plans to Discontinue Use

December 30, 2014
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SAS is #1…In Plans to Discontinue Use

I’ve been tracking The Popularity of Data Analysis Software for many years now, and a clear trend is the decline of the market share of the bigger analytics firms, notably...

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Plot with ggplot2 and plotly within knitr reports

December 30, 2014
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Plot with ggplot2 and plotly within knitr reports

Plotly is a platform for making, editing, and sharing graphs. If you are used to making plots with ggplot2, you can call ggplotly() to make your plots...

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Widgets For Christmas

December 30, 2014
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For Christmas, I generally want electronic widgets, but after six months of development, all I wanted this Christmas was htmlwidgets, and Santa RStudio/jj,joe,yihui and Santa Ramnath delivered early with...

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The 6th Spanish R Users Conference

December 30, 2014
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The 6th Spanish R Users Conference

by Emilio L. Cano The VI Spanish R Users Conference took place on October 23 and 24 in Santiago de Compostela (Spain). It was a two-day event with a...

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Cluster Analysis of the NFL’s Top Wide Receivers

December 29, 2014
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Cluster Analysis of the NFL’s Top Wide Receivers

“The time has come to get deeply into football. It is the only thing we have left that ain't fixed.”Hunter S. Thompson, Hey Rube Column, November 9, 2004I have...

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OpenCPU release 1.4.6: gzip and systemd

December 29, 2014
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OpenCPU release 1.4.6: gzip and systemd

OpenCPU server version 1.4.6 has been released to launchpad, OBS, and dockerhub (more about docker in a future blog post). I also updated...

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top posts for 2014

December 29, 2014
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top posts for 2014

Here are the most popular entries for 2014: 17 equations that changed the World (#2) 995 Le Monde puzzle 992 “simply start over and build something better” 991...

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First Day of the Month, Using R

December 29, 2014
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First Day of the Month, Using R

Future-proofing is an important concept when designing automated reports. One thing that can get out of hand over time is when you accumulate so many periods of data that...

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Multivariate Medians

December 29, 2014
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I'll bet that in the very first "descriptive statistics" course you ever took, you learned about measures of "central tendency" for samples or populations, and these measures included...

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R wins a 2014 Bossie Award

December 29, 2014
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I missed this when it was announced back on September 29, but R won a 2014 Bossie Award for best open-source big-data tools from InfoWorld (see entry number 5):...

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Making Static & Interactive Maps With ggvis (+ using ggvis maps w/shiny)

December 29, 2014
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Making Static & Interactive Maps With ggvis (+ using ggvis maps w/shiny)

Even though it’s still at version 0.4, the ggvis package has quite a bit of functionality and is highly useful for exploratory data analysis (EDA). I wanted to see...

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Getting R and Java 1.8 to work together on OSX

December 29, 2014
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Hey Mac OSX users with Java 1.8 installed. Did R just request a Java 1.6 installation and then promptly crash your session?  If so, read on… The Problem A...

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rfoaas 0.0.5

December 29, 2014
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A new version of rfoaas is now on CRAN. The rfoaas package provides an interface for R to the most excellent FOAAS service--which provides a modern, scalable and...

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How to extract a data.frame from string data

December 28, 2014
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A guest article by Asher Raz, PhD, CareerHarmony Sometimes, data of subjects are recorded on a server (e.g. SQL server) as string data records for each subject. In some...

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RcppArmadillo 0.4.600.0

December 28, 2014
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Conrad produced another minor release 4.600 of Armadillo. As before, I had created a GitHub-only pre-release(s) of his pre-release(s), and tested a pre-release as well as the...

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