21 ene 2013

R en tú smart Phone o Tablet.


R is a free statistical, graphing and data management software. Unfortunately, R is very hard to learn. To bridge the gap between authoritative (but expensive) reference textbooks and free but often technical and difficult to understand help files, I created R Instructor (more...)

16 ene 2013

Se buscan estadísticos para entender el mundo

Si usted quiere desarrollar su habilidad para discernir lo importante de lo trivial, aprenda estadística. Más argumentos a su favor: dicen que los que se dediquen a ella tendrán la profesión más sexy del próximo decenio y que esta ciencia será imprescindible para superar la crisis. Hoy es indispensable para la biomedicina, las ciencias sociales, la física… y el sentido común. (Mas..)

15 ene 2013

The tsbugs package for R

My tsbugs package has gone up on CRAN. The functions are aimed to automate the writing of time series models to run in WinBUGS or OpenBUGS. I created these functions a while back when I was doing some work on model averaging for time series models. I found it a lot easier to build R functions to write the BUGS models than the more error-inducing process of copy and pasting BUGS scripts, and then making slight alterations to create new models. It also allowed me to add arguments to specify different lag lengths, prior distributions, variance assumptions and data lengths. I decided not to write a vignette for CRAN, as it would have involved doing some estimation in BUGS via R2WinBUGS or R2OpenBUGS and running into some problems when submitted the package. Instead I thought I would post a quick guide Here

Otro de los N-ésimos tutoriales de R en la web

Interesante tutorial de R: http://jaredknowles.com/r-bootcamp/