October 2016

anytime 0.0.4: New features and fixes

October 20, 2016 | Thinking inside the box

A brand-new release of anytime is now on CRAN following the three earlier releases since mid-September. anytime aims to convert anything in integer, numeric, character, factor, ordered, ... format to POSIXct (or Date) objects -- and does so without requiring a format string. See the anytime page for a few examples. ... [Read more...]

2016-13 ‘DOM’ Version 0.3

October 20, 2016 | pmur002

This report describes changes in version 0.3 of the ‘DOM’ package for R. This version represents a major refactoring of the package code, including its user-facing API. These changes were made in order to facilitate the addition of new features to the package, which in this version include: a new way ... [Read more...]

2016-13 ‘DOM’ Version 0.3

October 20, 2016 | pmur002

This report describes changes in version 0.3 of the ‘DOM’ package for R. This version represents a major refactoring of the package code, including its user-facing API. These changes were made in order to facilitate the addition of new features … Continue reading → [Read more...]

Building a package automatically

October 20, 2016 | Mikkel

So, I just finished building a R wrapper for FOAAS (F*ck Off As A Service).  FOAAS (F*ck Off As A Service) provides a modern, RESTful, scalable solution to the common problem of telling people to f*ck off. I wanted to share the package with you and also ...
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The new R Graph Gallery

October 20, 2016 | David Smith

Once upon a time, there was the original R Graph Gallery, by Romain François. Sadly, it's been unavailable for several years. Now there's a new R Graph Gallery to fill the void, created by Yan Holtz. It contains more than 200 data visualizations categorized by type, along with the R ... [Read more...]

Difference between unique() and duplicated()

October 20, 2016 | Frequena

When we work with data, we usually find with an obstacle: repeated values. This type of values don’t represent a critical problem if we have the ability to identify. Once we have that list of repeated values, it is very easy to discard, eliminate or simply extract. We are ... [Read more...]

Network Analysis Part 3 Exercises

October 20, 2016 | Miodrag Sljukic

This is the third set of exercises on networks in which we practice the functions for graph structure, using package igraph. The first and second part are available here: Part 1 Part 2 If you don’t have package already installed, install it using the following code: install.packages("igraph") and load ... [Read more...]

Annotated Facets with ggplot2

October 20, 2016 | Abhijit

I was recently asked to do a panel of grouped boxplots of a continuous variable, with each panel representing a categorical grouping variable. This seems easy enough with ggplot2 and the facet_wrap function, but then my collaborator wanted p-values on the graphs! This post is my approach to the ...
[Read more...]

Scaling RServe Deployments

October 20, 2016 | Bora Beran

Tableau runs R scripts using RServe, a free, open-source R package. But if you have a large number of users on Tableau Server and use R scripts heavily, pointing Tableau to a single RServe instance may not be sufficient. Luckily you can use a load-balancer to distribute the load across ...
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Annotated Facets with ggplot2

October 19, 2016 | R on Abhijit Dasgupta

I was recently asked to do a panel of grouped boxplots of a continuous variable, with each panel representing a categorical grouping variable. This seems easy enough with ggplot2 and the facet_wrap function, but then my collaborator wanted p-values on the graphs! This post is my approach to the ...
[Read more...]

a grim knight [cont’d]

October 19, 2016 | xi'an

As discussed in the previous entry, there are two interpretations to this question from The Riddler: “…how long is the longest path a knight can travel on a standard 8-by-8 board without letting the path intersect itself?” as to what constitutes a path. As a (terrible) chess player, I would ...
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ratio-of-uniforms

October 19, 2016 | xi'an

One approach to random number generation that had always intrigued me is Kinderman and Monahan’s (1977) ratio-of-uniform method. The method is based on the result that the uniform distribution on the set A of (u,v)’s in R⁺xX such that 0≤u²≤ƒ(v/u) induces the distribution with density ...
[Read more...]

R Tools for Visual Studio 0.5 now available

October 19, 2016 | David Smith

R Tools for Visual Studio, the open-source Visual Studio add-in for R programmers, has a new update available for download. RTVS 0.5 makes it easier to run R within SQL Server 2016 as a stored procedure, and supports multiple windows for R graphics. RTVS 0.5 makes use of Visual Studio's polyglot nature so ... [Read more...]
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