similar to: Problems with xlsx and rjava

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 =

Hello, I have experienced the following problem after installing rJava (it being a prerequisite for another package in which I am relly interested). Any helpful thoughts would be appreciated: OS: Windows XP Professional 2002 SP3, have Java 6 Update 20 from Sun, also installed the JDK from http://java.sun.com/javase/downloads/index.jsp (or at least I suspect I installed it as it asked to re-boot

Hi, I keep getting the below error regarding rJava which is required by package xlsx (I have used it in the past to directly import data from Excel 2010). I was on R version 2.15.0 when I was getting this error this morning. So I upgraded to 2.15.1 but still the same problem. I tried unstalling and reinstalling xlsx and even rJava directly from the source as indicated here:

Hi all, I am trying to run the package xlsx to read Excel 2007 files and I am getting the error below. > library(xlsx) Loading required package: xlsxjars Loading required package: rJava Error : .onLoad failed in loadNamespace() for 'xlsxjars', details: call: .jinit() error: cannot obtain Class.getSimpleName method ID Error: package 'xlsxjars' could not be loaded By

Hello, I am trying to run JRI example from rJava, but I have some issues. I have read many posts and didn't find any solution to my problem. I have the following code: Rengine re = new Rengine(null, false, null); System.out.println("Rengine created, waiting for R"); if (!re.waitForR()) { System.out.println("Cannot load R"); return;

HI, I was trying to install xlsx package for reading in Excel 2007 files. The installation went smoothly. But when I tried to load the library, I got the following error message: > library(xlsx) Loading required package: xlsxjars Loading required package: rJava Error : .onLoad failed in loadNamespace() for 'xlsxjars', details: call: .jinit() error: cannot obtain

Hi, I tried to read a (small) xlsx file by "readWorksheetFromFile" function of "XLConnect" package and "read.xlsx" function in "xlsx" package, but I got this error message: Error: OutOfMemoryError (Java): Java heap space I tried to follow the solution on the web

Dear R users, Im trying to load *"xlsx"* package which depends on *"xlsxjars"* and * "rJava"* packages. All the 3 packages (zipped files) are installed successfully in windows. I have added "C:\Program Files\Java\jre1.6.0_03\bin\client" to the PATH variable to get rJava working. However, the following error message results after inputting

I think remember this error from trying to write an Excel file that already existed. If this file already exists, try to delete it and see, if this solves the issue. Besides that you're writing that you are "Using write.xlsx to extract data from an Excel file", write.xlsx() is to write an Excel file, not to read from it. Should be read.xlsx() then iirc. ? ? Gesendet:?Freitag, 15.

Hi, I am trying to install the rJava package in a Linux environment (Platform: x86_64-suse-linux-gnu (64-bit)), where I am facing an issue which I cannot solve so far and where I could require some help: The installation seems to go fine, however in the last step of the installation where loading the package is tested, the process fails with the following error: ** testing if installed package

? Thu, 14 Mar 2024 14:12:12 +0000 Subia Thomas OI-US-LIV5 <Thomas.Subia at draexlmaier.com> ?????: > Using write.xlsx to extract data from an Excel file, I get this error > message. > > > Error in .jcall("RJavaTools", "Ljava/lang/Object;", "invokeMethod", > cl, : java.lang.OutOfMemoryError: GC overhead limit exceeded There seems to be a

Hi Dirk, It was unclear to me to which extent it is a kernel/security patch vs (r)Java issue. In any case, this is really problematic for me as it prevents me de facto from running some key R packages for my daily work. I'll post again if I see some solution (other than downgrading the kernel) somewhere. Meanwhile, any suggestions for a fix is welcome. Cheers Lorenzo On Mon, Jun 26, 2017

????? I spoke too soon in saying that everything worked with OpenJDK:? "R CMD check Ecfun_0.2-4.tar.gz" using "https://github.com/sbgraves237/Ecfun" worked fine on my Mac but failed with "error: DLL 'rJava' not found: maybe not installed for this architecture?" under Windows 10.? "00install.out" and "Sys.getenv('PATH')"

Dear all, I am facing a problem with running a script that i have written in R and i hope you can help me spot which exactly is the problem and how i can solve it. The error I get is the following: ---- Error in .jcheck(silent = FALSE) : Java Exception <no description because toString() failed>.jcall(row[[ir]], "Lorg/apache/poi/ss/usermodel/Cell;", "createCell",

Hi I am using ubuntu 8.04 and faced some problems when installing rJava. What I did first was install.packages("rJava") but I could not proceed since: "checking Java support in R... configure: error: absent R was configured without Java support. Please run R CMD javareconf as root to add Java support to R." afterwards I took Alt+F2 and typed: gksudo R CMD javareconf

Hi I am using ubuntu 8.04 and faced some problems when installing rJava. What I did first was install.packages("rJava") but I could not proceed since: "checking Java support in R... configure: error: absent R was configured without Java support. Please run R CMD javareconf as root to add Java support to R." afterwards I took Alt+F2 and typed: gksudo R CMD javareconf

Spencer, you could argue that Java is dead since Oracle effectively killed it by removing all public downloads, but if you manage to get hold of a Java installation then it works just fine with R. To my best knowledge there has never been an issue if you installed rJava from source. macOS Catalina has made binary distributions impossible due to additional restrictions on run-time, but even that

Simon, Java is still one of the most popular languages out there, in particular in large organizations. See e.g. https://www.tiobe.com/tiobe-index/ . However, there has been a lot of confusion because of Oracle's licencing change in 2019. But the good news is, there are more alternatives than ever. See e.g.

Thanks Sebastian, Johannes and Dirk for your inputs, I think this can be marked [SOLVED] though I still don't understand how it started. The answer seems to be that something sets an environment variable JAVA.LIBRARY.PATH and this wasn't set correctly. I had never directly done anything to set that so that's odd but what I had done that was causing the problem (I think) is that I had

Hi listeRs, Maybe I have missed something, but I am facing a problem I don't understand even after reading archives and manuals (…maybe not carefully enough !) : On my PC (64-bit OS, Intel Xeon CPU , two L5506@2.13 GHz processors, 12 Go RAM) under Windows 7 SP1, I run both 32-bit (i386-pc-mingw32/i386) and 64-bit (x86_64-pc-mingw32/x64) version 2.14.2 (2012-02-29) of R, packages