similar to: How can I export a big data.frame to excel 2010 - file.xlsx?

I'm needing to remove the R-squared , and put this in a vector. It's the same that I do with the Beta or alfa in a linear regression: beta <- vector() ## beta for (i in 1:ncol(ret)){ beta[i] <- summary(lm((ret[,i] - ret.selic.ibov[,1]) ~ rmrf[,1] + max[,1]))*$coef[[2]]* } So, I need to know what I'll put after* $*. Thanks. -- View this message in context:

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:

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

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"

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, 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 all, How can I read .xlsx files in R Regards Nico [[alternative HTML version deleted]]

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

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:

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 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

Hi Adrian, dat=data.frame(matrix(0,3,3)) write.xlsx(dat,"z:/dat.xlsx",sheetName="sheet1",append=F) write.xlsx(dat,"z:/dat.xlsx",sheetName="sheet2",append=F) The above code works and creates new worksheets. But if I want to append to an existing worksheet I seem to get an error.

Hello, How can I read a xlsx file using xlsx package? Thanks Albert [[alternative HTML version deleted]]

Hi! I'm manipulating XLSX data using RODBC, however a limitation which appears to be driver based is that you can't clear or drop sheets from the XLSX files, as per the following example: > library(RODBC) > xlsx<-odbcDriverConnect("DRIVER=Microsoft Excel Driver (*.xls, *.xlsx, *.xlsm, *.xlsb);DBQ=c:\\documents and settings\\desktop\\testxlsx.xlsx; ReadOnly=False") >

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 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.

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:

Dear list, I'm running windows xp with R 2.12.0. I'm trying to load a excel spreadsheet into R using the xlsx package. I posted my code below with the error I get. > res <- read.xlsx("Copy of test_excel_input_data.xlsx", 6) Error in .jcall("RJavaTools", "Ljava/lang/Object;", "invokeMethod", cl, : java.lang.IllegalStateException: Cannot get

Hi, I am using this script to read a xlsx file to a data frame: library(xlsx) File <- file.path("d:", "car ", "car95-99.xlsx") B_car <- read.xlsx(File, "raw_data") Car2x <- data.frame(month = B_car$Date,Ch = B_car$Ch.des, lat=B_car$Latitude) The last row in the data.frame is always NA, how can I remove it? Thx. -- View this message in