May 2014

Updates to repmis: caching downloaded data and Excel data downloading

May 11, 2014 | Christopher Gandrud

Over the past few months I’ve added a few improvements to the repmis–miscellaneous functions for reproducible research–R package. I just want to briefly highlight two of them: Caching downloaded data sets. source_XlsxData for downloading data in Excel formatted files. Both of these capabilities are in repmis ... [Read more...]

European MEP Data, Part 2

May 11, 2014 | Wingfeet

Following last week's short examination, I now wanted to drill down a bit more in the voting behaviour as given in data from votewatch.eu on voting of MEPs.Votewatch's Data describe how often MEPs voted what in the European Parliament. For each MEP the number of votes, percentages Yes, ... [Read more...]

Enrichment Network

May 10, 2014 | dgrapov

Enrichment is beyond random occurrence within a category. Networks can represent relationships among variables. Enrichment networks display relationships among variables which are over represented compared to random chance. Next is a tutorial for making enrichment networks for biological (metabolomic) data in R using the KEGG database.

[Read more...]

Automatically Exporting Multiple Cross Tables from Tableau Server into Excel

May 10, 2014 | Data * Science + R

Introduction The following blog post is based on a classical reporting task most of the people working in BI got frequently: Besides all the nice dashboards you create in Tableau, from time to time people will approach you with a request for a “data extract” – reports that typically looking like ...

[Read more...]

Comrades Marathon Negative Splits: The Plot Thickens

May 10, 2014 | andrew

I have been thinking a little more about those mysterious negative splits. Not too surprisingly, this thinking happened while I was out running along the Durban beachfront this morning. Let’s have a look at the ten most extreme negative splits from Comrades Marathon 2013: Below are the splits data for ... [Read more...]

Enrollments in US in Different Languages using rCharts and ggplot2

May 9, 2014 | Vivek Patil

[This article was first published on Adventures in Analytics and Visualization, and kindly contributed to R-bloggers]. (You can report issue about the content on this page [Read more...]

Because it’s Friday: the worst place to be stung by a bee

May 9, 2014 | David Smith

Ever wondered where on your body is the most painful place to be stung by a bee? Me either, but Michael Smith from Cornell's Department of Neurobiology and Behavior was eager enough to find out that he stung himself 25 to find out which location was the most painful. (Thanks BR ... [Read more...]

Customer Satisfaction and Loyalty: Structural Equation Model or One-Dimensional Dissonance

May 9, 2014 | Joel Cadwell

Causal thinking is seductive. Product experience comes first, then feelings of satisfaction, and finally intentions to continue as a customer. Although customer satisfaction and loyalty data tend to be collected all at one time within the same question... [Read more...]

R for Cats: a feline-oriented R tutorial for beginners

May 9, 2014 | David Smith

Looking for a fun and useful intro to R for first-timers, with bonus cat pictures? Look no further than R for Cats, from Scott Chamberlain of ROpenSci. In addition to very helpful tips on R syntax, data structures, and an excellent list of dos and don'ts, it also shows you ... [Read more...]

In case you missed it: April 2014 roundup

May 9, 2014 | David Smith

In case you missed them, here are some articles from April of particular interest to R users: Registration is now open for the useR! 2014 R conference in Los Angeles. A new Kaggle competition challenges R users to predict which shoppers will become repeat buyers. Data on R usage around the ... [Read more...]

d3Network Plays Nice with Shiny Web Apps

May 9, 2014 | Christopher Gandrud

After some delay (and because of helpful prompting by Giles Heywood and code contributions by John Harrison) d3Network now plays nicely with Shiny web apps. This means you can fully integrate R/D3.js network graphs into your web apps. Here is what one ... [Read more...]

Further points on crayon colors

May 9, 2014 | Karl Broman

I saw this great post on crayola crayon colors at the Learning R blog, reproducing a nice graph of the Crayola crayon colors over time. (Also see this even nicer version.) The Learning R post shows how to grab the crayon colors from the wikipedia page, “List of Crayola crayon ... [Read more...]

Is it wise to install ALL the packages in CRAN ?

May 9, 2014 | selva862014

First off, here is how you can install all R Packages in one go: packs [Read more...]

Computational Actuarial Science

May 9, 2014 | arthur charpentier

After some delay, the book Computational Actuarial Science with R is now annonced for July 2014. I don’t know if we will be able to get copies for the R in Insurance conference, in London, but I guess everyone is working on it. And kindly, CRC sent me the following ... [Read more...]

Modelling seasonal data with GAMs

May 9, 2014 | Gavin L. Simpson

In previous posts I have looked at how generalized additive models (GAMs) can be used to model non-linear trends in time series data. At the time a number of readers commented that they were interested in modelling data that had more than just a trend component; how do you model ... [Read more...]

stopping rule impact

May 8, 2014 | xi'an

Here is a question from my friend Shravan Vasishth about the consequences of using a stopping rule: Psycholinguists and psychologists often adopt the following type of data-gathering procedure: The experimenter gathers n data points, then checks for significance (p [Read more...]

Classification of the Hyper-Spectral and LiDAR Imagery using R (mostly). Part 3: Shadow Removal

May 8, 2014 | S.S. Rebelious

This is my third post in this series, here are the links to the Part 1 and Part 2. Sorry for the delay, but at that time I got completely consumed with my PhD thesis and this story just went out of my mind. To the point. There were 2 types of shadows ... [Read more...]

Two more points about crayon colors

May 8, 2014 | Karl Broman

If you want to use crayon colors in R but you don’t want to rely on my R/broman package, you can just grab the code. Copy the relevant lines from the R/brocolors.R file: I spent a bit of time thinking about how best to sort the ... [Read more...]

package bdvis is on CRAN

May 8, 2014 | vijaybarve

We are happy to announce that package bdvis is on CRAN now. http://cran.r-project.org/web/packages/bdvis/index.html bdvis: Biodiversity Data Visualizations Biodiversity data visualizations using R would be helpful to understand completeness of biodiversity inventory, extent of geographical, taxonomic and temporal coverage, gaps and biases in ...

[Read more...]

R and Finance

May 8, 2014 | Joseph Rickert

by Joseph Rickert R/Finance 2014 is just about a week away. Over the past four or five years this has become my favorite conference. It is small (300 people this year), exceptionally well-run, and always offers an eclectic mix of theoretical mathematics, efficient, practical computing, industry best practices and trading “street ... [Read more...]

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May 2014

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