Blog Archives

Support Vector Machines in R (a course by Lutz Hamel)

October 19, 2011
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Support vector machines (SVM’s) are the “big iron” of the data mining world, especially suited for extreme data intensive tasks like image classification, biosequence processing, handwriting recognition, etc. Dr. Lutz Hamel, author of “Knowledge Discovery with Support Vector Machines”, presents his online course “Introduction to Support Vector Machines In R” November 18 – December 16. “Support Vector Machines in...

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rmongodb – R Driver for MongoDB

September 3, 2011
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The source code to rmongodb (home page at http://cnub.org/rmongodb.ashx), a driver to MongoDB for the R language, has been released as open source at GitHub: https://github.com/gerald-lindsly/rmongodb.  This portable full-featured package was developed on top of the mongodb.org supported C driver. It runs almost entirely in native code so you can expect high performance.  Plans are to submit rmongodb to CRAN soon for pre-built binary distribution, but first I would...

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Marketing optimization using the nonlinear minimization function nlm

July 28, 2011
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Guest post by Bob Agnew ([email protected]) —————- Introduction Marketing optimization consists of assigning offers to prospects in order to maximize total expected profit subject to a few general linear constraints and the requirement that a prospect receives at most one offer.  What distinguishes these problems is their sheer size.  With millions of prospects, brute force linear solvers are unsuitable. ...

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Review: Financial Risk Forecasting – The Theory and Practice of Forecasting Market Risk, with Implementation in R and MATLAB by Jon Danielsson

July 16, 2011
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Guest post to R-bloggers by Dr Kris Boudt. ——————– R has always been my favorite language to forecast financial risk in my research and consulting. But, I have been reluctant to use it in my lectures on financial risk. It is certainly not the absence of appropriate R packages that refrained me. On the contrary, there is a large...

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The stringr package just turned 0.5

July 1, 2011
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(Re-posted from a post made by Hadley Wickham to the mailing list) # About the stringr package Strings are not glamorous, high-profile components of R, but they do play a big role in many data cleaning and preparations tasks. R provides a solid set of string operations, but because they have grown organically over time, they can be inconsistent...

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The R Journal Vol. 3/1 went online

June 23, 2011
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Dear All, The first issue of the third volume of The R Journal is now available at http://journal.r-project.org/current.html. Below are direct links to (most of) the articles: Volume 3/1, June 2011 Download complete issue Refereed articles may be downloaded individually using the links below. Table of Contents Editorial 3   Contributed Research Articles   testthat:...

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Job offer: R-Square is looking for an R Statistician

June 21, 2011
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This is a guest post by Kyle Stokley. ————— My name is Kyle and I am an IT recruiter for R-Square.  I currently have an opening in Durham NC with a fortune 100 company based out of NJ for a Statistician with R-Programming Experience. Job Title: Statistician Qualifications: MS or PhD in statistics with 0-10 years work experience. R...

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“Financial Risk Forecasting” – a book review by Christian Reusch

June 10, 2011
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A guest post by Christian Reusch giving a book review for the book “Financial Risk Forecasting” by Jon Danielsson. ———– As an academic-turned hedge fund professional with a particular interest in financial econometrics and quantitative money management, this book written by one of my former lecturers at the London School of Economics caught my attention: Having (had to) read...

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Data Mining in R online course taught by Luis Torgo at statistics.com

June 8, 2011
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An interested PR piece I got from Janet Dobbins: ————— Luis Torgo is teaching an online course, “Data Mining in R: Learning with Case Studies” at statistics.com. The course starts June 17 – July 15. Brief Description: The main goal of this course is to teach users how to perform data mining tasks using R. Instructor(s): Dr. Luis Torgo...

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Fittesmodel.com: A user-friendly way to conduct empirical research together

June 6, 2011
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(A guest post by Camiel de Koning) ————– When trying to replicate, verify or extend empirical research of others, a researcher generally encounters many time-consuming barriers and there are often many prerequisites. Fittestmodel has the objective to overcome many of these problems, by presenting a webapplication that allows users to: use but not having to install R. quickly incorporate...

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