Thanks Jim, I tried XLConnect but faced with same error. > options(java.parameters = '-Xmx5g')
> library(XLConnect) Loading required package: rJava XLConnect 0.2-5 by Mirai Solutions GmbH http://www.mirai-solutions.com , http://miraisolutions.wordpress.com > cftc = > readWorksheetFromFile("d:\\Krishna\\Research\\CFTC_COT\\cftcdata.xlsx", sheet > = 'Sheet1') Error: OutOfMemoryError (Java): Java heap space What is the maximum file size to load into R? is there a better way to load large excel files to R? Many thanks for the help. Regards, Krishna -----Original Message----- From: Jim Holtman [mailto:jholt...@gmail.com] Sent: Monday, July 22, 2013 5:10 PM To: S N V Krishna Cc: r-help@r-project.org Subject: Re: [R] problem loading large xlsx file into r try the "XLConnect" package and if possible change the "xlsx" to "xls" format for better performance. Sent from my iPad On Jul 22, 2013, at 1:24, S N V Krishna <kris...@primps.com.sg> wrote: > Hi, > > I am facing trouble when trying to read large xlsx file into R. please find > the code and error below. The file I was trying to read has 36,500 rows X 188 > col, ~ 37 MB size. > >> options( java.parameters = "-Xmx4g" ) > >> library(xlsx) > Loading required package: xlsxjars > Loading required package: rJava > >> cftc = read.xlsx("d:\\Krishna\\Research\\CFTC_COT\\cftcdata.xlsx", 1) > Error in .jcall("RJavaTools", "Ljava/lang/Object;", "invokeMethod", cl, : > > >> sessionInfo() > R version 3.0.1 (2013-05-16) > Platform: x86_64-w64-mingw32/x64 (64-bit) > > locale: > [1] LC_COLLATE=English_United States.1252 LC_CTYPE=English_United > States.1252 [3] LC_MONETARY=English_United States.1252 LC_NUMERIC=C > [5] LC_TIME=English_United States.1252 > > attached base packages: > [1] stats graphics grDevices utils datasets methods base > > other attached packages: > [1] xlsx_0.5.1 xlsxjars_0.5.0 rJava_0.9-5 > > Many thanks for the help and guidance. > > Regards, > > Krishna > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org 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. ______________________________________________ R-help@r-project.org 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.
