A second possibility (not as automated but very simple to do)
is to read the first sheet with verbose = TRUE:
DF <- read.xls("test.xls", sheet = 1, verbose = TRUE)
and it will display the number of sheets in a message.
You can then read them in in a loop.
On Thu, Jul 2, 2009 at 11:05 AM, Gabor
Grothendieck<ggrothendi...@gmail.com> wrote:
> If you are on Windows and have Excel on the same machine
> then the code here:
>
> http://tolstoy.newcastle.edu.au/R/e6/help/09/03/7736.html
>
> will return the number of worksheets as well as a vector of
> the worksheet names.
>
> It seems that the email has somehow caused some of the
> lines to wrap so you will have to correct that.
>
> There is also some info on various methods of reading excel
> spreadsheets here:
> http://wiki.r-project.org/rwiki/doku.php?id=tips:data-io:ms_windows
>
> On Thu, Jul 2, 2009 at 10:22 AM, Lauri Nikkinen<lauri.nikki...@iki.fi> wrote:
>> Hi,
>>
>> I'm trying to read several Excel sheets from an Excel file into a
>> list. I'm using
>> read.xls from package 'gdata'. I would like to know how I can
>> check the number of sheets before the loop (in the example below) so
>> that I could adjust the loop counter? Any suggestions?
>>
>> DF.list <- list()
>> for (i in 1:4) {
>> DF.list[[i]] <- read.xls("sample_file.xls", sheet=i,
>> stringsAsFactors = FALSE)
>> }
>>
>> Thanks,
>> -L
>>
>> ______________________________________________
>> R-help@r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
