rMaps released
Ramnath Vaidyanathan just released his new R interactive package, rMaps (Vaidyanathan, 2014). The packages relies on the development version of his widely known rCharts package (Vaidyanathan, 2013) as well as...continue reading.
R News from another blog for R community
How to upload files to Dropbox and Google Docs from R
Have you ever wondered whether you can upload files from R to Dropbox and/or Google Docs? I recently asked myself this question while making my most recent Shiny app (more...continue reading.
Within Group Index in R
There are many occasions in my research when I want to create a within group index for a data frame. For example, with demographic data for siblings one might want...continue reading.
New Geometry – Ternary Errorbars
ggtern 1.0.3.1 has introduced a new series of geometries to represent known errors in data, they are relatively easy to use and are along the lines of the geom_errorbar(…) and...continue reading.
Fast differential expression analysis annotation-agnostic across groups with biological replicates
This article is originally published at https://lcolladotor.github.io/ Thanks for visiting r-craft.org This article is originally published at https://lcolladotor.github.io/ Please visit source website for post related comments.continue reading.
Fun with R and graphs on the dawn of 2014
There is some secret message hidden in this graph Let’s decode it Resulting in Wishing everyone a Happy New Year 2014, cheers!continue reading.
Using R as a Computer Algebra System with Ryacas
R is used to perform statistical analysis and doesn’t focus on symbolic maths. But it is sometimes useful to let the computer derive a function for you (and have the...continue reading.
Method of Simulated Moments with R
This document details section 12.5.6. Unobserved Heterogeneity Example. The original source code giving the results from table 12.3 are available from the authors’ site here and written for Stata. This...continue reading.
Simulated Maximum Likelihood with R
This document details section 12.4.5. Unobserved Heterogeneity Example from Cameron and Trivedi’s book – MICROECONOMETRICS: Methods and Applications. The original source code giving the results from table 12.2 are available...continue reading.
Login to the cluster, request a node and change to your project directory in a single command
To be able to do RNA-seq research work in large multi-sample studies you have to be able to analyze large files and thus frequently use a powerful computing environment. In...continue reading.
Creating awesome reports for multiple audiences using knitrBootstrap
As a biostatistics student, I use R very frequently when analyzing data. At the same time, I interact with other researchers, some who know how to use R (R crowd)...continue reading.
Summarize statistics by Groups in R & R Commander
R is great at accomplishing complex tasks. Doing simple things with R though takes some effort. Consider the simple task of producing summary statistics for continuous variables over some factor...continue reading.
Comparing mnlogit and mlogit for discrete choice models
Earlier this weekend (Dec. 7, 2013), mnlogit was released on CRAN by Wang Zhiyu and Asad Hasan ([email protected]) claiming that mnlogit uses “parallel C++ library to achieve fast computation of Hessian matrices”....continue reading.
Catching errors in R and trying something else
I recently encountered some functionality in R which most of you might already know. Nevertheless, I want to share it here, because it might come in handy for those of...continue reading.
The ‘Deutsche Bahn’ (German Railway Corp.) is always late!!1! Or is it? And if, why?
The biggest German railway company, the ‘Deutsche Bahn’, is subject of frequent emotional discussions about being late all the time. A big German newspaper, the Süddeutsche Zeitung built the so-called...continue reading.
boxplotdbl 1.2.2 and diaplt 1.2.1 packages are now available at CRAN
The boxplotdbl 1.2.2 and the diaplt 1.2.1 are listed at CRAN. Now the procedure to install, load and use the package is: install.packages(‘boxplotdbl’) library(boxplotdbl) f <- as.factor(rep(1:2, each=5)) boxplotdou(f, rnorm(10),...continue reading.
Third Student Cultural Mixer
Note: the Fall event will be student and post doc only while the Spring event will be open to the whole department. This is to smooth the integration process for...continue reading.
Trying to reduce the memory overhead when using mclapply
I am currently trying to understand how to reduce the memory used by mclapply. This function is rather complicated and others have explained the differences versus parLapply (A_Skelton73, 2013; lockedoff,...continue reading.
Creating your Jekyll-Bootstrap powered blog for R blogging
As you might have noticed, I recently decided to move Fellgernon Bit from Tumblr to GitHub. There are a couple of reasons why I made this change. I wanted a...continue reading.
My strategy for quickly grading homeworks
For the past year and a half I have been a teaching assistant (TA) for the Statistical Methods in Public Health I to IV (140.621 to 140.624) courses. As part...continue reading.
