I'm working with a 350MB CSV file on a server that has 3GB of RAM, yet I'm hitting a memory error when I try to store the data frame into a survey design object, the R object that stores data for complex sample survey data.
When I launch R, I execute the following line from Windows: "C:\Program Files\R\R-2.9.1\bin\Rgui.exe" --max-mem-size=2047M Anything higher, and I get an error message saying the maximum has been set to 2047M. Here are the commands: > library(survey) #this step takes more than five minutes > data08<-read.csv("data08.csv",header=TRUE,nrows=210437) > object.size(data08) #329877112 bytes #Looking at Windows Task Manager, Mem Usage for Rgui.exe is already 659,632K > brr.dsgn <-svrepdesign( data = data08 , repweights = data08[, grep( "^repwgt" , colnames( data08)) ], type = "BRR" , combined.weights = TRUE , weights = data08$mainwgt ) #Error: cannot allocate vector of size 254.5 Mb #The survey design object does not get created. #This also causes Windows Task Manager, Mem Usage to spike to 1,748,136K #And here are some memory diagnostics > memory.limit()  2047 > memory.size()  1449.06 > gc() used (Mb) gc trigger (Mb) max used (Mb) Ncells 131148 3.6 593642 15.9 15680924 418.8 Vcells 45479988 347.0 173526492 1324.0 220358611 1681.3 A description of the survey package can be found here: http://faculty.washington.edu/tlumley/survey/ I tried creating a work-around by using the database-backed survey objects (DB SO), included in the survey package to conserve memory on larger datasets like this one. Unfortunately, I don't think the survey package supports database connections for replicate weight designs yet, since I've only been able to get a database connection working after creating a svydesign object and not a svrepdesign object - and also because neither the DB SO website nor the svrepdesign help page make any mention of those parameters. The DB SOs are described in detail here: http://faculty.washington.edu/tlumley/survey/svy-dbi.html Any advice would be truly appreciated. Thanks, Anthony Damico [[alternative HTML version deleted]] ______________________________________________ Remail@example.com mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.