[R] output

[Val]

Hi Marc and all,

Last time you suggest me to use  WriteXLS  function to write more than
65,000  row in excel.  Creating the file worked fine.  Now I wanted to
read it using the WriteXLS   function but have a problem,. The file
has more than  one sheets.  Here is the script and the error message.

datx <- function(n,mean,sd) { mean+sd*scale(rnorm(n)) }
dat <-data.frame(datx(110000,10,2))
WriteXLS(dat, "test5.xlsx", row.names=FALSE)
 I created several sheets  by copying the first sheet

t1<- read.xls("Test6.xlsx",2, stringsAsFactors=FALSE)

I am getting an error message of
Error in read.table(file = file, header = header, sep = sep, quote = quote,  :
  no lines available in input

Thank you in advance


On Tue, Dec 13, 2016 at 5:07 PM, Val <valkremk at gmail.com> wrote:
> Marc,
> Thank you so much! That was helpful comment.
>
>
> On Mon, Dec 12, 2016 at 10:09 PM, Marc Schwartz <marc_schwartz at me.com> wrote:
>> Hi,
>>
>> With the WriteXLS() function, from the package of the same name, if you specify '.xlsx' for the file name extension, the function will create an Excel 2007 compatible file, which can handle worksheets of up to 1,048,576 rows by 16,384 columns.
>>
>> Thus:
>>
>>   WriteXLS(dat, "test4.xlsx", row.names = FALSE)
>>
>> That is all described in the help file for the function.
>>
>> Regards,
>>
>> Marc Schwartz
>>
>>
>>> On Dec 12, 2016, at 6:51 PM, Val <valkremk at gmail.com> wrote:
>>>
>>> Hi all,
>>>
>>> I have a data frame with more than 100,000 rows.
>>>
>>> datx <- function(n,mean,sd) { mean+sd*scale(rnorm(n)) }
>>> dat <- datx(110000,10,2)
>>>
>>> 1)
>>> WriteXLS(dat, "test4.xls", row.names=FALSE)
>>> Error in WriteXLS(dat, "test4.xls", row.names = FALSE) :
>>>  One or more of the data frames named in 'x' exceeds 65,535 rows or 256 columns
>>>
>>> I noticed that *.xls has  row and column limitations.
>>>
>>> How can I take the excess row to the next sheet?
>>>
>>> 2) I also tried to use xlsx and have a problem
>>>
>>> write.xlsx(dat, "test3.xlsx",sheetName="sheet1", row.names=FALSE)
>>> Error in .jnew("org/apache/poi/xssf/usermodel/XSSFWorkbook") :
>>>  java.lang.OutOfMemoryError: Java heap
>>> space.jnew("org/apache/poi/xssf/usermodel/XSSFWorkbook")<S4 object of
>>> class "jobjRef">
>>>
>>> Any help ?
>>> Thank you in advance
>>>
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>>