similar to: suppressing time shift in plot of POSIXct object?

Hi R folks, I'd like to announce several new R users groups here in SF, LA, NYC, and Ottawa - as well as their next scheduled event. The goal of these user groups, besides gently explaining 'drop=TRUE' to the uninitiated, is to exchange knowledge, promote best practices, and spur the adoption of R for innovative applications. If I've missed any groups here, please feel to add on

Max & Friends, I've run into a problem with odfWeave 0.7.5 running under R 2.7.1 (Windows XP, SP2) doing some monthly production reports. Under 2.7.1 I'm getting various parsing errors after Sweaving starts, e.g.: Sweaving content.Rnw Writing to file content_1.xml Processing code chunks ... Error in parse(text = cmd) : unexpected input in "" > Above case works

Dear all I tried finding a package for event studies but unfortunately without success. Does anyone know which package suits best for such an analysis? Thank you in advance. Regards [[alternative HTML version deleted]]

All Bay Area useR's, Quick reminder that our use R! Group 2009 kick off meeting is next Wednesday evening: http://www.meetup.com/R-Users/calendar/9573566/ at Predictive Analytics World. Panel Discussion - The R and Science of Predictive Analytics: Four Case Studies in R * Bo Cowgill, Google * Itamar Rosenn, Facebook * David Smith, Revolution Computing * Jim Porzak, The

All San Francisco Bay Area useRs, On March 11th, Spencer Graves & Sundar Dorai-Raj will talk about Creating R Packages, and related issues. This is the first of our (now) regular monthly meetings, details here http://www.meetup.com/R-Users/calendar/9718957/ Last week Wednesday, we had over 60 people attend our 2009 kick-off meeting in cooperation with Predictive Analytics World (see Group

Hello All, I have data where each feature data point is a vector, and my distance measurement is a weighted dot product between vectors. I would like to use R to perform a cluster analysis on this data. Does one of the R cluster analysis routines provide for a user provided distance function? Dan Stanger Eaton Vance Management 255 State Street Boston, MA 02109 617 598 8261

I have a large dataset that contain duplicate records. How do I identify and remove duplicate records? Chris Anderson 707.315.8486 www.sassydeals4u.com ____________________________________________________________ Free info for small business owners. Click here to find great products geared for your business.

hello, I want to use randomForest to classify a matrix which is 331030?42,the last column is class signal.I use ? Memebers.rf<-randomForest(class~.,data=Memebers,proximity=TRUE,mtry=6,ntree=200) which told me" the error is matrix(0,n,n) set too elements" then I use: Memebers.rf<-randomForest(class~.,data=Memebers,importance=TRUE,proximity=TRUE) which told me"the error is

Hi all, Is there a way to study the lead and lag relation of two time series? Let's say I have two time series, At and Bt. Is there a systematic way of concluding whether it's A leading B or B leading A and by how much? Thanks!

Sent: Sunday, June 07, 2009 5:43 PM Subject: Question about R an SPSS Dears Sirs: Venables, Smith and R-Development Core Team I am reading about the functional features of R statistical software, because I want to compare these progarm with the basic module of SPSS software. I would like to know if the R version 2.9.0 application is capable of read and procces entry files

All, Tuesday week (July 15th) Mike Driscoll & I will be presenting "A Gentle Introduction to R and its Applications in Business Intelligence" at the SDForum Business Intelligence SIG in Palo Alto, California. One motivation is to judge interest in starting a Use R Group in the Bay Area. We will have an informal organizational meeting after the talk. We hope all local R

The San Francisco Bay Area useR Group is very excited to host Hadley Wickham on Sep 17 for our Fall kickoff meeting. Details at http://www.meetup.com/R-Users/calendar/10446894/ This year we are moving our regular meeting monthly meeting to the 2nd Tuesday of each month. Also, we hope to rotate the venue around the Bay Area. Hadley's presentation will be on the Cal Berkeley campus. Exceptions

I am wondering if there is a better alternative than Excel for data storage that does not require database knowledge (I will eventually have to learn this, but it is not on my immediate todo list). I need something that is not limited to 256 columns... I don't need any of the built in functions in excel just a spreadsheet like program with cells that hold data in a data.frame format for a

I was wondering if it would make sense to change the default behavior of the following: summary(15555L) ## Min. 1st Qu. Median Mean 3rd Qu. Max. ## 15560 15560 15560 15560 15560 15560 summary.default on numeric values rounds values (not just presentation) to getOption("digits")-3L (or four) digits by default, making those values surprising and less suitable for

I have a client running Microsoft SQL Server. I am interested in ways of accessing data from this server using R. I would welcome any information about how this can be done. I have a reasonable grasp of SQL and have experience with MySQL and RODBC but don't know anything much about Microsoft SQL Server. David Scott -- _________________________________________________________________

I have trouble with this: as.Date("Sep-1981", format="%b-%Y") Returns "NA" >From documentation for strftime '%b' Abbreviated month name in the current locale. (Also matches full name on input.) '%Y' Year with century. What am I doing wrong? cheers Worik [[alternative HTML version deleted]]

Hi, I have an R script which is time consuming because it has two nested loops in it of at least 5000 iterations each, I have tried to use the multicore package but id doesn't seem to improve the elapsed time of the script(a shorter script for example) and I can't use the mcapply because of technical reasons. I was wondering how can I make my script use more cores and memory because I am

Hi, I have an R script which is time consuming because it has two nested loops in it of at least 5000 iterations each, I have tried to use the multicore package but id doesn't seem to improve the elapsed time of the script(a shorter script for example) and I can't use the mcapply because of technical reasons. I was wondering how can I make my script use more cores and memory because I am

I am new to R and I'd like to use the randomForest package for my thesis (identifying important variables for more detailed analysis with other software). I have found extremely well written and helpful information on the usage of R. Unfortunately it seems to be very difficult to find similarly detailed tutorials for randomForest, and I just can't get it work with the information on

Hello, Responsys anticipates hiring an intern or junior statistician this fall or winter. Our group was formally Loyalty Matrix - a leader in using R for customer intelligence and direct marketing optimization. We acquired by Responsys this Spring. We anticipate hiring one or two R fluent interns or statisticians this fall and/or winter. If you are interested in being considered, please