Github has made data on its code repositories, developer updates, forks etc. from the public GitHub timeline available for analysis, and is offering prizes for the most interesting visualization of the data. Sounds like a great challenge for R programmers! The R language is currently the 26th most popular on GitHub (up from #29 in December), and it would...
Monthly Archives: May 2012
New R User Group in Cologne, Germany
The latest local R user group to join the fold is the Köln R User Group, now the sixth R user group in Germany. Their first group meeting will be on July 6, with presentations on ANOVA, ggplot2 graphics in Deducer, and writing R code with Emacs's Org-mode. If you're in the Cologne area, this would be a great...
NSF BIGDATA webinar
If you're doing any kind of big data analysis - genomics, transcriptomics, proteomics, bioinformatics - then unless you've been on vacation the last few weeks you've no doubt heard about the NSF/NIH BIGDATA Initiative (here's the NSF solicitation...
Quick Tip: Replace Values in Dataframe on Condition with Random Numbers
This one took me some time - though, in fact it is plain simple:
> options(scipen=999)
> (my_df X1 X2 X3 X4 X5 X6 X7 X8 X9 X10
1 0 0 1 0 1 1 1 1 0 1
2 0 0 1 ...
What does this package look like?
In this post, I give a very simple trick to understand the way a package is organized, which functions are included in and how these functions depend from each others. The idea has been brought by one of my student, Soraya, who is currently working in a very hostile environment, surrounded by true geeks. However,
A Warning About warning()
Avoid R’s warning feature. This is particularly important if you use R in production; when you regularly run R scripts as part of your business process. This is also important if you author R packages. Don’t issue warnings in your own co...
Monitoring some statistics with "R"
I´ve been practicing after reading a couple of tutorials:R: A self-learn tutorialProgramming in Rto create a basic function to monitor some basic statistics as RMSEP, Bias, SEP, Correlation and RSQ. I´ve been doing this with other so...
How to Make HTML5 Slides with knitr
One week ago I made an early announcement about the markdown support in the knitr package and RStudio, and now the version 0.5 of knitr is on CRAN, so I'm back to show you how I made the HTML5 slides. For those who are not familiar with markdown, you m...
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
