similar to: Java exception error (Jcheck) while running an R script

Dear Adrian, I would like to export a quite large matrix from R to Excel (40 columns, 257 597 rows). After 10 minutes of work, I get the following error message: Error in .jcall(row[[ir]], "Lorg/apache/poi/ss/usermodel/Cell;", "createCell", : Java Exception <no description because toString() failed> This is the code I used: write.xlsx(wvs19812008hm,

Hey All, I'm trying to use the xlsx package to read a series of excel spreadsheets into R, but my code is failing at the first step. I setwd into my the directory with the spreadsheets, and, as a test ask for the first one: read.xlsx(file = "Argentina Final.xls", sheetIndex = 1) I promptly get an error message: Error in .jcall(row[[ir]],

Hi, I had been using a script that works fine for several days and then I stopped using it for a month without having doubt that it would not be working. When I use it again today, I received an error when I reach the last step of generating the data file. *"Error in .jcall(wb, "Lorg/apache/poi/ss/usermodel/Sheet;", "createSheet", : * *

Hola. En mi caso, no he podido resolver los problemas con el Java para usar XLConnect, que en los papeles me parece el mejor. Supongo que algo de la arquitectura del sistema o bien de la relación entre el Java, el R y el RStudio. Así que utilizo library(openxlsx) write.xlsx(datos, file = "EDA1.xlsx") #donde datos es el objeto que quiero guardar. Requiere instalar el RTools, según tipo y

Dear List, Java Exception error while reading large data in R from DB using RJDBC. I am trying to read large data from DB table(Vectorwise), using RJDBC connection. I have tested the connection with small size data and was able to fetch DB tables using same connection(conn as in my code). Please suggest where am i going wrong or alternate option to solve such issues while reading large DB

Hi, I hope you guys can help me, I already posted this question on stackoverflow but did not get any help (which worked). And I need to solve this problem as quick as possible: In our firm we migrated to windows 7 (64-bit) and also updated the java packages (1.6.0_24) and also R (to 2.15). Then I tried to install my packages which i use daily and one of em is the xlsx package. But if I load the

Buenos días a todos! Estoy trabajando con una base de datos que directamente he descargado de internet y después de prepararla un poco necesito exportarla a Excel he intentando con las dos opciones que mencionaré al final pero ninguna funciona, de qué otra manera puedo exportar esos datos a Excel... muchas gracias por su ayuda y pronta respuesta! 1) library(xlsx) library(rJava)

Hi, i want to create xlsx sheet, all things seems to be perfect until this erro message Erreur : OutOfMemoryError (Java): Java heap space i have xp system, (32bit) I tried the following syntax > options(java.parameters = "-Xmx1000m") > options(java.parameters = "-Xms=3670K") > writeWorksheet(wb, SP, sheet = "SP") alos this one options(java.parameters =

Hi, When i want load eclipse with wine 1.1.22 I obtained this error : # # A fatal error has been detected by the Java Runtime Environment: # # EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x7ec06ec4, pid=27, tid=28 # # JRE version: 6.0_14-b08 # Java VM: Java HotSpot(TM) Client VM (14.0-b16 mixed mode windows-x86 ) # Problematic frame: # C [comctl32.dll+0x86ec4] # # If you would like

Hello, The attached patch adds the jcheck target equivalent to make check, but that can run with a -j flag ($ make jcheck -jX). It does not interfere with the regular check, but rather builds on top of the check-one target: it first generates a list of tests to run using RunLLVMTests, and then run those tests according to the supplied -j flag, invoking the check-one target for each one of them.

On Wed, Feb 25, 2009 at 12:02:18PM -0800, Julien Lerouge wrote: > For 2), I think the NewNightlyTest.pl script would require some small > changes, to invoke the jcheck target instead of check, pass the desired > -j flag, and also parse the log. I'll take a look. In any case, the > changes would only apply to the DejaGNU tests (llvm-test already works > fine with -jX). Here is

On Wed, Feb 25, 2009 at 10:26:02AM -0800, Chris Lattner wrote: > > On Feb 24, 2009, at 10:03 PM, Julien Lerouge wrote: > > > On Tue, Feb 24, 2009 at 06:24:17PM -0800, Julien Lerouge wrote: > >> I haven't tested with objdir != srcdir. > > > > Ok, that was broken. Attached is a smaller diff that should work in > > all > > cases. > > This

On Feb 24, 2009, at 10:03 PM, Julien Lerouge wrote: > On Tue, Feb 24, 2009 at 06:24:17PM -0800, Julien Lerouge wrote: >> I haven't tested with objdir != srcdir. > > Ok, that was broken. Attached is a smaller diff that should work in > all > cases. This sounds really cool Julien! Two questions: 1) does it preserve the checking that the existing tcl stuff does, which

Hello, I'm trying to package some source files that link R to a broker using a Java API and the rJava package. I am successful doing the connection and operate on it using my R code. I would like to package the files and release the package. I created some S4 classes to hold several Java objects. I use WinXP and R 2.7.1. I've searched RSeek and the Wiki for help, but could not find a

On Tue, Feb 24, 2009 at 06:24:17PM -0800, Julien Lerouge wrote: > I haven't tested with objdir != srcdir. Ok, that was broken. Attached is a smaller diff that should work in all cases. Julien -- Julien Lerouge PGP Key Id: 0xB1964A62 PGP Fingerprint: 392D 4BAD DB8B CE7F 4E5F FA3C 62DB 4AA7 B196 4A62 PGP Public Key from: keyserver.pgp.com -------------- next part -------------- Index:

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 =

Hi, Is there a function I can use on my dataframe to give me a concise summary of variables that are NA,blank,etc? Basically all Null values, Empty strings, white space, blank values. Ideally it would look something like the below: # it should only includes the fields with NAs, blanks, etc. Added bonus would be to include column Index. #Valid Records = records that are not NA, blank,etc

Hey, I'm trying to build something like this http://flowingdata.com/2011/05/11/how-to-map-connections-with-great-circles/ but with my own data in csv files. The code runs well if I use the same csv files as the author, but with mine , this is what I get *Code* library(maps) library(geosphere) map("world") xlim <- c(-180.00, 180.00) ylim <- c(-90.00, 90.00)

Is there a library that is able for example to 1. merge 2 dataframes by row eg.: rbind(dataframe1, dataframe2):data.frame 2. delete a column from a dataframe del(dataframe, colname) or del(dataframe, colindex= 1):data.frame? 3. Select lines from a dataframe by a specific function ? select(dataframe, func=small(x){x<1}, colindex=3): data.frame? 4. converting all double columns of a data.frame

I am out of my league with this question. The following code starts the java imaging program ImageJ from within R, and displays an image (assuming ImageJ is installed on your computer). library(RImageJ) img <- IJ$openImage( file.choose() ) #pick an available .tif file img$show() # make the image object visible # An image is now displayed # find out about the objects involved >