October 2016

Cute Gibbs sampling for rounded observations

October 31, 2016 | Luis

I was attending a course of Bayesian Statistics where this problem showed up: There is a number of individuals, say 12, who take a pass/fail test 15 times. For each individual we have recorded the number of passes, which can go from 0 to 15. Because of confidentiality issues, we are presented with ... [Read more...]

Because k-Means Kluster!

October 31, 2016 | Dan Thompson

A few months ago we started our new company, Kluster, with the name being a tip of the hat to cluster analysis. The immediate question is often: “why do you spell kluster with a k?” My novelty answer: “because k-means cl... [Read more...]

Predictability in Network Models

October 31, 2016 | Jonas Haslbeck - r

Network models have become a popular way to abstract complex systems and gain insights into relational patterns among observed variables in almost any area of science. The majority of these applications focuses on analyzing the structure of the network... [Read more...]

R 3.3.2 now available

October 31, 2016 | David Smith

R 3.3.2, the latest update to the R language, was released today. Binary releases for Linux and Mac are available now from your local CRAN mirror, and the Windows builds will be available shortly. As a minor update to the R 3.3 series, this update focuses mainly on fixing bugs and doesn't ... [Read more...]

ShinyProxy 0.6.0 released!

October 31, 2016 | tobias

Monday 31 October 2016 - 15:58 ShinyProxy is a novel, open source platform to deploy Shiny apps for the enterprise or larger organizations. Why is this needed? There is currently no valid open source alternative that offers this functionality. ... [Read more...]

ShinyProxy 0.6.0 released!

October 31, 2016 | Open Analytics

ShinyProxy is a novel, open source platform to deploy Shiny apps for the enterprise or larger organizations. Why is this needed? There is currently no valid open source alternative that offers this functionality. What does it offer? authentication authorization securing traffic with TLS/SSL usage statistics scalability This is free ... [Read more...]

Poster/cheatsheet for R/BioC package genomation

October 31, 2016 | altuna

We prepared a poster/cheatsheet for the bioconductor package genomation, which is a package for summary and annotation of genomic intervals. Users can visualize and quantify genomic intervals over pre-defined functional regions, such as promoters, exons, introns, etc. The genomic intervals represent regions with a defined chromosome position, which may ... [Read more...]

Fastest Way to Add New Variables to A Large Data.Frame

October 30, 2016 | statcompute

[This article was first published on S+/R – Yet Another Blog in Statistical Computing, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don't. pkgs <- list("hflights", "doParallel", "foreach", "dplyr", "rbenchmark", "data.table") lapply(pkgs, require, character.only = T) data(hflights) benchmark(replications = 10, order = "user.self", relative = "user.self", transform = { ### THE GENERIC FUNCTION MODIFYING THE DATA.FRAME, SIMILAR TO DATA.FRAME() ### transform(hflights, wday = ifelse(DayOfWeek %in% c(6, 7), 'weekend', 'weekday'), delay = ArrDelay + DepDelay) }, within = { ### EVALUATE THE EXPRESSION WITHIN THE LOCAL ENVIRONMENT ### within(hflights, {wday = ifelse(DayOfWeek %in% c(6, 7), 'weekend', 'weekday'); delay = ArrDelay + DepDelay}) }, mutate = { ### THE SPECIFIC FUNCTION IN DPLYR PACKAGE TO ADD VARIABLES ### mutate(hflights, wday = ifelse(DayOfWeek %in% c(6, 7), 'weekend', 'weekday'), delay = ArrDelay + DepDelay) }, foreach = { ### SPLIT AND THEN COMBINE IN PARALLEL ### registerDoParallel(cores = 2) v <- c(names(hflights), 'wday', 'delay') f <- expression(ifelse(hflights$DayOfWeek %in% c(6, 7), 'weekend', 'weekday'), hflights$ArrDelay + hflights$DepDelay) df <- foreach(fn = iter(f), .combine = mutate, .init = hflights) %dopar% { [...] [Read more...]

Becoming The Intern

October 30, 2016 | Data Imaginist - R posts

I was not always this famous… And with this I mean that a year ago only my colleagues knew I did stuff in R and now I’m reaching a slightly wider audience. Some of this is definitely due to me interning for Hadley Wickham and helping prepare the ne... [Read more...]

ratio-of-uniforms [#2]

October 30, 2016 | xi'an

Following my earlier post on Kinderman’s and Monahan’s (1977) ratio-of-uniform method, I must confess I remain quite puzzled by the approach. Or rather by its consequences. When looking at the set A of (u,v)’s in R⁺×X such that 0≤u²≤ƒ(v/u), as discussed in the previous ...
[Read more...]
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