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Rafa Llopis

100 Mensajes más leídos de R - 0 views

www.r-statistics.com/...nipulation-and-other-languages

recopilación 100 R blogs 2012

shared by Rafa Llopis on 29 Apr 13 - No Cached
  • Top 100 R posts of 2012
    • Rafa Llopis
      Rafa Llopis on 29 Apr 13
       
      Es una lista con los 100 post más visitados del 2012 sobre lenguaje R, con datos muy interesantes sobre el tema y aportaciones con ejemplos programados.
  • R-statistics blog
  • around 245 active R bloggers 
  • ...9 more annotations...
  • these bloggers wrote around 3200 posts about R
  •  list of the top visited posts 
  • programming environment
  • (unofficial) online journal of the R statistical
  • contribute their R article
  • .  Bellow you can see a few figures comparing the statistics of 2012
  • Reproducible R blogging – make it to blog from R to WordPress and blogger (via knitr, RStudio, etc.)
  • Creating online interactive visualization using R
  • More guest posts on R-bloggers
Alexis Agustín

See how Deloitte uses R for actuarial analysis - 0 views

blog.revolutionanalytics.com/...-r-for-actuarial-analysis.html

Deloitte Analisis de datos Regression Poisson extrapolacion

shared by Alexis Agustín on 25 Apr 13 - No Cached
    • Alexis Agustín
      Alexis Agustín on 25 Apr 13
       
      Aqui un consultor de Deloitte nos muestra como usa R para explorar datos y ajustarlos en distribuciones, calculando proyecciones usando la regresion de Poisson. Ademas lo contrapone a Excel, concluyendo que no hay una hoja de calculo en la que confundir columnas, si no que en lineas de codigo simple que se puede copiar se puede trabajar mas facilmente con grandes cantidades de datos
  • Jim Guszcza (Predictive Analytics lead at Deloitte Consulting and Assistant Professor at UW-Madison) who gave a great webinar presentation yesterday
  • R is used for exploratory data analysis and modeling, with a live examples of fitting a mixute distribution to bimodal claims data, and calculating loss reserves using Poisson regression.
  • ...2 more annotations...
  • Just one simple line of [R] code that would work just as well for a 100-by-100 loss triangle as it would for a 10-by-10 triangle. No hidden cells in the spreadsheet, no risk of spreadsheet error. It's a little bit of code you could look at in one screen, it's replicable ... and this does all the work that a spreadsheet would do. 
  • He uses the Allstate Claim Prediction Challenge data (from a recent Kaggle competition) to fit a Tweedie model to 13 million records of claim data. (The Tweedie distribution is often used to model insurance claims, where many claims are exactly zero, and non-zero claims follow a continuous Gamma-like distribution.) Using the forthcoming rxGLM function, he fit the model to this large data set in just over two minutes (140.22 seconds) using a single quad-core PC.
Yes We Pass

Revolution R Enterprise - 100% R and More - 1 views

www.revolutionanalytics.com/...revolution-r-enterprise

shared by Yes We Pass on 29 Apr 13 - No Cached
    • Yes We Pass
      Yes We Pass on 09 May 13
       
      Esta página explica que actualmente R es el lenguaje de programación más importante en cuanto al campo de las estadísticas. La empresa Revolution analytics, que se dedica a comercializar software para trabajar estadísticas, está contribuyendo al desarrollo de este lenguaje, como por ejemplo en la creación de soportes técnicos y servicios de consultoría para R, etc.
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