Blog Archives

Scratching that itch from ifelse

September 3, 2014

Okay, as I wrote yesterday, ifelse is rather slow, at least compared to working in C++. As my current project is using ifelse rather a lot, i decided to write a small utility function. In the expectation that I will … Weiterlesen →

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Comparing ifelse with C++ for loop with ifs

June 19, 2014

I currently am reading a bit about using Rcpp and its potential for speeding up R. I found one unexpected example in the lecture from Hadley Wickham: require(Rcpp) signR <- function(x) { if (x > 0) { 1 } else … Weiterlesen →

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Shoutout for Atlassian

January 24, 2014

In the last two days I was able to download and install a great stack of software from Atlassian, which would theoretically allow a small team of 5-10 people to organize software development on enterprise-grade tools: JIRA for issue tracking … Weiterlesen →

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SAS on the road

January 16, 2014

I like some of the ideas what SAS might need that truck for: The SAS truck travels the country with an IBM S/360, a CRT monitor, and David Hasselhoff, solving crimes. #rstats — Kieran Healy (@kjhealy) January 16, 2014 … Weiterlesen →

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PS: Clustering whiskies

January 1, 2014

I played some more with the app from yesterday, and deployed it with a more usefull user interface and some new functionality on By the way, thanks to the guys at for hosting the app on their servers. … Weiterlesen →

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Mango solutions

RStudio homepage

Zero Inflated Models and Generalized Linear Mixed Models with R

Quantide: statistical consulting and training



CRC R books series

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