Monthly Archives: February 2015

R + ggplot2 Graph Catalog

February 3, 2015
By
R + ggplot2 Graph Catalog

Joanna Zhao’s and Jenny Bryan’s R graph catalog is meant to be a complement to the physical book, Creating More Effective Graphs, but it’s a really nice gallery in its own right. The catalog shows a series of different data visualizations, all made with R and ggplot2. Click on any of the plots and you get the R code...

Read more »

Canberra IAPA Seminar – Text Analytics: Natural Language into Big Data – 17 February

February 3, 2015
By
Canberra IAPA Seminar – Text Analytics: Natural Language into Big Data – 17 February

Topic: Text Analytics: Natural Language into Big Data Speaker: Dr. Leif Hanlen, Technology Director at NICTA Date: Tuesday 17 February Time: 5.30pm for a 6pm start Cost: Nil Where: SAS Offices, 12 Moore Street, Canberra, ACT 2600 Registration URL: http://www.iapa.org.au/Event/TextAnalyticsNaturalLanguageIntoBigData … Continue reading →

Read more »

BayesFactor version 0.9.10 released to CRAN

February 3, 2015
By

If you're running Solaris (yes, all zero of you) you'll have to wait for version 0.9.10-1, due to a small issue preventing the Solaris package from building on CRAN. The rest of you can pick up the updated version on CRAN today.See below the fold for c...

Read more »

R in Insurance 2015: Registration Opened

February 3, 2015
By
R in Insurance 2015: Registration Opened

The registration for the third conference on R in Insurance on Monday 29 June 2015 at the University of Amsterdam has opened. This one-day conference will focus again on applications in insurance and actuarial science that use R, the lingua franca for ...

Read more »

A few things I learned about shiny (and reactive programming)

February 2, 2015
By
A few things I learned about shiny (and reactive programming)

Reactive dependencies are dynamic Reactives: order of execution Use of isolate to prevent accidental dependencies Conditional panel reactiveValues One of the things I really like about shiny is that it has excellent documentation: the tutorial, articles and gallery go a long way in helping newcomers as well as intermediate programmers mastering the structure and features … Continue reading A...

Read more »

Spearman Correlation Heat Map with Correlation Coefficients and Significance Levels in R

February 2, 2015
By
Spearman Correlation Heat Map with Correlation Coefficients and Significance Levels in R

Figure 1: Spearman correlation heat map with correlation coefficient and significance levels based on the mtcars data set.In a recent paper we included data from a survey we conducted. During the publication process, one of the reviewers asked for a more in depth statistical analysis of the data set. He (she?) explicitly expressed a special interest in correlating the...

Read more »

QuickTip: Utilizing Machine Learning Methods to Identify Important Variables

February 2, 2015
By
QuickTip: Utilizing Machine Learning Methods to Identify Important Variables

Machine Learning is the field of scientific study that concentrates on induction algorithms and on other algorithms that can be said to “learn.” In order to identify important variables in a multivariate dataset one can utilize machine learning methods. There are many different machine learning algorithms for different tasks. One common task is to decide if a feature vector...

Read more »

Shiny for Interactive Application Development using R

February 2, 2015
By

This slidify-based deck introduces the shiny package from R-Studio and walks one through the development of an interactive application that presents users with options to subset the iris dataset, generate a summary of the resulting dataset, a...

Read more »

Paris’s history, captured in its streets

February 2, 2015
By
Paris’s history, captured in its streets

The following image by Mathieu Rajerison has been doing the rounds of French media recently. It shows the streets of Paris, color-coded by their compass direction. It's been featured in an article in Telerama magazine, and even on French TV Channel LCI (skip ahead to 8:20 in the linked video. which also features an interview with Mathieu). Mathieu used...

Read more »

What is an R environment?

February 2, 2015
By

For many years as an R user, I didn’t care about environments. To run your statistics, you only very rarely need them. Until you come accross your first environmental concerns… For me, that was in relation with reference classes and R6 objects. Suddenly, everybody was talking about env, and I didn’t have a clue. So, The post What is...

Read more »

Search R-bloggers

Sponsors

Never miss an update!
Subscribe to R-bloggers to receive
e-mails with the latest R posts.
(You will not see this message again.)

Click here to close (This popup will not appear again)