similar to: xlsx file read in R

Dear group, I am working on a rather big project where the output data frames have dimensions of 3000 x 15 or greater. We are using xlsx and xlsx2 to write the data.frames to Excel sheets. Since recently we get the following error, when trying to write the data frames to the excel sheets: Error in ls(envir = envir, all.names = private) : invalid 'envir' argument We figured out that

Dear r helpers; I'm interested in reading from and writing to large .xlsx files fairly regularly. (Why, the naysayers may ask - and the answer is basically colleagues and clients who prefer that format). I've tried out the XLConnect and xlsx libraries, but the java implementation they use just takes too much RAM for the files I'm working with. gdata leverages perl and works really

Hi to all. I have a problem to connect to an Excel database using RODBC. Namely, I am using 64-bit R 2.14.0, under Windows 7 and I tried following: library(RODBC) > channel <- odbcConnectExcel("results.xlsx") Error in odbcConnectExcel("results.xlsx") : odbcConnectExcel is only usable with 32-bit Windows # ok this is clear why it doesn't work > channel

Hi, i have a very huge number of data with the size 2375ko, i want to import them for R to xlsx but the size of excel is limited How can i resolve this problem? And please how can i define the frame Note that i have a table rows times c(1.....100) columns WLc(200...1000) and inside S c(15,.........) the table it is full values -- View this message in context:

I have spent hours on R in Windows 7. Just installed 2 days ago so the R package should be current. Currently I am using the RGui (64-bit) for Windows. I can not read an Excel file into R from my computer. Have hours on this. Completely crazy!! I have the XLConnect package loaded. I think it is loaded because when I enter: > loadedNamespaces() [1] "base"

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 =

Hola, estoy trabajando con el paquete xlsx y el xlConnect y ambos presentan este mismo error. Error in .jcall(cell, "V", "setCellValue", value) : java.lang.OutOfMemoryError: Java heap space Alguien conoce una solución. Alguien conoce otro paquete para guardar documento de excel y que no involucre el uso de Java. -- *Wilmer Contreras Sepulveda* *Grupo de Investigación

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

Hi Everybody In R, the XLConnect package can read and write named region to and from Excel. In order to read a named region with the readNamedRegion function you need to know it's name. You can check is a name exists with existsName, but you still have to know the name. Is there a way to actually get a list of the named regions in XLConnect sinilar to getRanges in the xlsx package. On that

i am unable to open a file which is saved as .xlsx format in R . The file contains approximately 1,50,000 rows. So I m not able to save it as csv file.Please suggest ways to open this file -- View this message in context: http://n4.nabble.com/how-to-open-excel-2007-xlsx-file-in-R-tp1017273p1017273.html Sent from the R help mailing list archive at Nabble.com.

Hi, I need some help to export a data frame with 83 rows and 1411 colums. I have used the package RODBC until now. But now, I have 1411 colums that I can't send to the old excel. If anybody knows a package to convert my data frame in xlsx tell me! Thanks for help in advance! Pamela Botrel -- View this message in context:

I am trying to read an xlsx spreadsheet (1506 rows, 501columns) all populated but getting the following error: Please advise as to how to get around this issue. > res <- read.xlsx("c:\\BSE_v2.xlsx",1) Error in .jcall("RJavaTools", "Ljava/lang/Object;", "invokeMethod", cl, : java.lang.OutOfMemoryError: Java heap space Here is the session info:

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

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.

Otra opción es importar directamente los datos que necesites usando XLConnect (sin llevarlos a CSV). Ese paquete permite hacer cosas muy potentes desde el propio fichero de Excel. https://cran.r-project.org/web/packages/XLConnect/index.html Recomiendo, encarecidamente, la lectura de sus dos vignettes. Un Saludo, -- Miguel Ángel Rodríguez Muíños Dirección Xeral de Saúde Pública Consellería de

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 list, Is there a R function I can use to extract the worksheet names from an Excel file?? If no, any other automatic ways (not using R) to do this? thanks! ...Tao

library(xlsReadWrite) mydata<-read.xls("file path", header=TRUE) however if I change xls to csv it works just fine. Any ideas what I'm doing wrong? I have have also using the package gdata with the exact same error. Below is the error that pops up. Error in findPerl(verbose = verbose) : perl executable not found. Use perl= argument to specify the correct path. Error in

I imported data from teradata to R data frames.Now i want to export this data to .xlsx file ( not .xls since it doesn't support large data set). I have tried dataframes2xls package but it needs python/perl which I don't have on my computer. Could any one help me resolve this issue. Thanks Sumit [[alternative HTML version deleted]]

Hola. En un cierto directorio tengo archivos excel y de otros tipos. Cada uno de ellos corresponde a una encuesta a una empresa X. Me gustaria importar los datos de ciertas celdas de ciertas hojas de todos los archivos excel en una sola pasada. ¿Hay alguna forma de hacerlo? Yo se que la variable Z está siempre en la celda X de la hora tanto. Me gustaría ingresarlo todo en una matriz en que