similar to: R for SAS and SPSS Users

Hi List, I had the pleasure of taking Dr Bob Muenchen's interview for his upcoming book R For SAS and SPSS users. He has spent 27 years in this field while I have spent almost that much on earth. So this is more like a fan blog interview. I thought it would be of use to people curious about R, or even SAS , or SPSS if they have not worked on either of these packages before. Having fought my

Dear Lists, I got the chance to review Bob Muenchen's book - R for SAS and SPSS users. While my detailed review is online at www.decisionstats.com, the book is a welcome addition in R Textbooks for beginners and an especially nice one for people who have experience in SAS and /or SPSS languages. AT 50 USD, it's reasonably priced for all geographies (;) , and quite handy as a refernce book

Dear Lists, Here are my latest posts on retrenching and locating facilities better. Do you have anything in academic papers that use data mining- analytics for 1) Better Employee ROI quantitative measurement or cutting costs rationally based on data rather across the board. 2) Locating facilities based on pure quant based approaches than local supply demand conditions. Specific application for

Dear All, Slightly off -non technical topic ( but hey it is Friday) Following last week's interview with REvolution Computing which makes enterprise versions of R, here is another interview with the rapidly growing company Blue Reference CEOPaul van Eikeren at <http://www.decisionstats.com/2009/06/04/interview-inference-for-r/>

All I have been looking into the books on performing statistics in R, in particular I am interested in General Linear Mixed Models, for Randomized Complete Block Design Experiments The list I have come away with so far is: Mixed Effects Models in S and S-plus by Pinheiro (2002)

Dear List, Say I can use getwd() and setwd() to change my working directory. How can I read in all the files within that directory using command line (like a ls() but for the path specified) Regards Ajay Websites- Technology http://decisionstats.com On Wed, Jul 4, 2012 at 3:30 PM, <r-help-request@r-project.org> wrote: > r-help@r-project.org [[alternative HTML version deleted]]

With reference to R News News: R version 3.0.0 (Masked Marvel) has been released on 2013-04-03. R version 2.15.3 (Security Blanket) has been released on 2013-03-01 R version 2.15.2 (Trick or Treat) .... R version 2.15.1 ("Roasted Marshmallows") ... R version 2.15.0 ("Easter Beagle") R version 2.14.0 ("Great Pumpkin") Dear R help List, How are these version types

Dear List, Has anyone worked with R on Ubuntu Server edition. Also would it be possible to connect to this ever using remote desktop . In addition has anyone worked with using R from a Amazon EC2 cloud like structure. Any early previews of Azure SDk's and R . Could you guide me to a place where I can read about this ? This is research project for low cost analytical solutions for developing

R and its GUI Rattle helped me establish a data mining consulting startup on my own, without taking bank credit . People I met on the forum and especially books like rforsasandspssusers.com/ <http://rforsasandspssusers.com/> helped me ease the transition to the new Object Oriented method from the earlier - even a monkey can create shakespeare if he types enough kind of analytics software.

Dear List Sorry if this question seems very basic. Is there a function to pro grammatically find number of processors in my system _ I want to pass this as a parameter to snow in some serial code to parallel code functions Regards Ajay Websites- http://decisionstats.com http://dudeofdata.com Linkedin- www.linkedin.com/in/ajayohri

Hi everyone, I'm working on a multi-level model based on one of the "radon" example from Gelman & Hill's book ( http://www.amazon.com/Analysis-Regression-Multilevel-Hierarchical-Models/dp/052168689X/ref=pd_bbs_1?ie=UTF8&s=books&qid=1237069199&sr=8-1 ). I add an "region" indicator (has numeric values from 1 to 5) as the varying intercept in my model (I

I want to specify a 2-level mixed model using the lme function in order to test an a priori hypothesis about the between-group values of the slopes but don't know how to do this . Here is the problem. Consider first the case of a single group. The model is: Y_i= a +bX_i + error where I indexes the different values of X and Y in this group . The a priori hypothesis of the slope is: b=K.

I get the following message when using the reshape2 package line > tDat.m<- melt(Dataset) Using Item, Subject as id variables > tDatCast<- acast(tDat.m,Subject~Item) Aggregation function missing: defaulting to length Note Problem Statement- convert dataframe Subject Item Score 1 Subject 1 Item 1 1 2 Subject 1 Item 2 0 3 Subject 1 Item 3 1 4 Subject 2 Item 1 1 5

Dear List, I am trying to create a R package and having some issues with setting the path on a Windows XP . Could you point me to a tutorial that helps in creating R packages ......... Also I tried installing Linux using the Windows installer wubi but it failed repeatedly and everytime it resets my system clock . Do you have any tools etc for easy Linux installations for a Windows user..

Dear List, One persistent feedback I am getting to people who are newly introduced to R ( especially in this cost cutting recession) is - 1) The website looks a bit old. While the current website does have a lot of hard work behind it, should n't a world class statistics package have a better website instead. You can check out www.knime.org which is an open source software , and free, and

Hi I am getting the following error > package.skeleton("ohri") Creating directories ... Creating DESCRIPTION ... Creating Read-and-delete-me ... Saving functions and data ... Making help files ... Done. Further steps are described in './ohri/Read-and-delete-me'. Warning messages: 1: In dump(internalObjs, file = file.path(code_dir, sprintf("%s-internal.R", :

Dear All A quick update. I just bundled a 30Gb EBS backed AMI for Windows 64, Revolution R and R64, Deducer,R Commander,Java SDK, Chrome, Open Office, Acrobat Reader. The AMI can be searched as a public image (search for "ohR") You can mail me for the admin password if you want to explore it further. AMI ID:ami-f4b7439d Name:ohR Description:64bit windows,

Hi All, I have the following data in one column for each row , (each value is like x1,y1,z1 space x2,y2,z2 space....) 77.56787,22.09909,0 73.26787,21.09909,0 76.53487,23.09909,0 75.56787,22.09909,0 76.54587,22.09909,0 76.56787,22.03509,0 75.56457,22.05609,0 76.56787,22.05609,0 Note all z values are O (hence ,0 can be treated as a delimiter) How do I split this column into multiple columns for

A SAS spokesperson has confirmed to this blog that they have invested in the R ?Core project to help build next generation algorithms . Details are sketchy but indications of some shift on cloud hosted SAS ,called SaaS are emerging.Also includes some details on Jim Davis ,SVP SAS marketing's statement on BI and Anne Milley having a new assignment within SAS Institute. Read more here -

Dear List, Do you know any way I can convert XML parameters into column headers. My data is in a csv file with each row containing a xml form of data , and multiple parameters ( <param1> data_val1 </param2> , <param2> data_val2 </param2> ) I want to convert it so each row caters to one record and each parameter becomes a different column. param1