Plotting Time Series in R using Yahoo Finance data

August 27, 2015
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Plotting Time Series in R using Yahoo Finance data

by Joseph Rickert I recently rediscovered the Timely Portfolio post on R Financial Time Series Plotting. If you are not familiar with this gem, it is well-worth the time to stop and have a look at it now. Not only does it contain some useful examples of time series plots mixing different combinations of time series packages (ts, zoo,...

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New release: Choroplethr v3.2.0

August 27, 2015
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New release: Choroplethr v3.2.0

Today I am happy to announce that a new version of choroplethr, v3.2.0, is now available. You can get it by typing the following from an R console: install.packages("choroplethr")...

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Coloring (and Drawing) Outside the Lines in ggplot

August 27, 2015
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Coloring (and Drawing) Outside the Lines in ggplot

Time for another Twitter-inspired blog post this week, this time from a tweet by @JonKalodimos: Is there a way to do this in #rstats #ggplot2 https://t.co/kxWQFlYpbB— Jonathan Kalodimos (@JonKalodimos)...

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Measuring business health with Delta LifeCycle Grids and R

August 27, 2015
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Measuring business health with Delta LifeCycle Grids and R

There are several posts connected with LifeCycle Grids on this blog. If you are not familiar with the concept I highly recommend you to start with Jim Novo’s book,...

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Spatio-Temporal Kriging in R

August 27, 2015
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Spatio-Temporal Kriging in R

PrefaceI am writing this post more for reminding to myself some theoretical background and the steps needed to perform spatio-temporal kriging in gstat. This month I had some free...

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abcfr 0.9-3

August 26, 2015
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abcfr 0.9-3

In conjunction with our reliable ABC model choice via random forest paper, about to be resubmitted to Bioinformatics, we have contributed an R package called abcrf that produces a...

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R packages with unlimited licenses

August 26, 2015
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R packages with unlimited licenses

I had an interesting email today saying that developers at the writer’s company wanted to use one of my packages, but weren’t allowed because it was under an unlimited...

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New R titles available in Chinese

August 26, 2015
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New R titles available in Chinese

by Andrie de Vries A few days ago I received an unexpected parcel in my letterbox. To my delight, it turned out to be a translation into Simplified Chinese...

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ManchesterR Meetup in August 2015

August 26, 2015
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ManchesterR Meetup in August 2015

The quarterly Manchester R meeting took place last night.  It was our first experience of the striking new HOME venue just past Oxford Road station.  The Cornerhouse team have...

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RProtoBuf 0.4.3

August 25, 2015
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A new maintenance release 0.4.3 of RProtoBuf is now on CRAN. RProtoBuf provides R bindings for the Google Protocol Buffers ("Protobuf") data encoding library...

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How to use lists in R

August 25, 2015
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In the (http://rforpublichealth.blogspot.com/2015/03/basics-of-lists.html), I went over the basics of lists, including constructing, manipulating, and converting lists to other classes. Knowing the basics, in this post, we'll use...

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I’m Back, A New Harry Long Strategy, And Plans For Hypothesis-Driven Development

August 25, 2015
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I’m Back, A New Harry Long Strategy, And Plans For Hypothesis-Driven Development

I’m back. Anyone that wants to know “what happened at Graham”, I felt there was very little scaffolding/on-boarding, and Graham’s … Continue reading →

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Following up on news stories with choroplethr and R

August 25, 2015
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Following up on news stories with choroplethr and R

by Ari Lamstein, consultant specializing in software engineering and data analysis and author of the free email course Learn to Map Census Data in R. One of my favorite...

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Visualising the predictive distribution of a log-transformed linear model

August 25, 2015
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Visualising the predictive distribution of a log-transformed linear model

Last week I presented visualisations of theoretical distributions that predict ice cream sales statistics based on linear and generalised linear models, which I introduced in an earlier post.Theoretical distributionsToday...

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R Graphical Systems

August 24, 2015
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R Graphical Systems

Just had an article published over at Simple Talk about the 3 R Major R Graphical Systems:https://www.simple-talk.com/content/article.aspx?article=2271

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email graphs

August 24, 2015
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email graphs

Communication between individuals working on a group project is commonly carried over email, and in-person meetings tend to be preceded by an emailed agenda, and followed by emailed minutes. Projects...

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PDQ Version 6.2.0 Released

August 24, 2015
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PDQ Version 6.2.0 Released

PDQ (Pretty Damn Quick) is a FOSS performance analysis tool based on the paradigm of queueing models that can be programmed natively in R Python...

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How R is used at Zillow to estimate housing values

August 24, 2015
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Zillow, the leading real estate and rental marketplace in the USA, uses R to estimate housing values. Zillow's signature product is the Zestimate, their estimated market value for individual...

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New Pacakge “docxtractr” – Easily Extract Tables From Microsoft Word Docs

August 24, 2015
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New Pacakge “docxtractr” – Easily Extract Tables From Microsoft Word Docs

This is more of a follow-up from yesterday’s post. The hack and function in said post was fine, but it was limited to uniform tables and made you do...

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RStudio adds a new Starter Plan, More Active Hours, and a Performance Boost to shinyapps.io

August 24, 2015
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RStudio adds a new Starter Plan, More Active Hours, and a Performance Boost to shinyapps.io

Five months ago we launched shinyapps.io. Since then, more than 25,000 accounts have been created and countless Shiny applications have been deployed. It’s incredibly exciting to see! It’s also...

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RcppDE 0.1.3

August 24, 2015
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A pure maintenance release 0.1.3 of the RcppDE package arrived on CRAN yesterday. RcppDE is a "port" of DEoptim, a popular package for derivative-free optimisation using differential...

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Changing the font of R base graphic plots.

August 24, 2015
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Changing the font of R base graphic plots.

Want to change the font used in your R plots? I got a quite simple solution that works on Mac OS.You need the function 'quartzFonts'. With this function, you...

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Canberra Data Miners: Seminar on Text, Knowledge and Information Extraction, by Dr Lizhen Qu (NICTA), Canberra, 4:30-5:30pm, Tuesday 1 Sept

August 24, 2015
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Canberra Data Miners: Seminar on Text, Knowledge and Information Extraction, by Dr Lizhen Qu (NICTA), Canberra, 4:30-5:30pm, Tuesday 1 Sept

Topic: Text, Knowledge, and Information Extraction Speaker: Dr. Lizhen Qu, Researcher at NICTA Organizer: Canberra Data miners Meetup Group Date and time: 4:30-5:30pm, Tuesday 1 Sept Location: Teal Room...

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labels.dendrogram in R 3.2.2 can be ~70 times faster (for trees with 1000 labels)

August 23, 2015
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labels.dendrogram in R 3.2.2 can be ~70 times faster (for trees with 1000 labels)

The recent release of R 3.2.2 came with a small (but highly valuable) improvement to the stats:::labels.dendrogram function. When working with dendrograms with (say) 1000 labels, the new function...

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Using R To Get Data *Out Of* Word Docs

August 23, 2015
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Using R To Get Data *Out Of* Word Docs

This was asked on twitter recently: Is it possible to import data entered in MS Word into R – I have multiple tables in 235 files that need importing...

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Predicting Titanic deaths on Kaggle IV: random forest revisited

August 23, 2015
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Predicting Titanic deaths on Kaggle IV: random forest revisited

On July 19th I used randomForest to predict the deaths on Titanic in the Kaggle competition. Subsequently I found that both bagging and boosting gave better predictions than randomForest. This...

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Modern Honey Network Machinations with R, Python, phantomjs, HTML & JavaScript

August 23, 2015
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Modern Honey Network Machinations with R, Python, phantomjs, HTML & JavaScript

This was (initially) going to be a blog post announcing the new mhn R package (more on what that is in a bit) but somewhere along the way...

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Examining Email Addresses in R

August 22, 2015
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Examining Email Addresses in R

I don’t normally work with personal identifiable information such as emails. However, the recent data dump from Ashley Madison got me thinking about how I’d examine a data set...

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Pricing Game

August 22, 2015
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In November, with Romuald Elie and Jérémie Jakubowicz, we will organize a session during the 100% Actuaires day, in Paris, based on a “pricing game“. We provide two datasets, (motor insurance, third party claims), with 2  years...

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