RDCOMClient: how to close Excel process?

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RDCOMClient: how to close Excel process?

by Lauri Nikkinen :: Rate this Message:

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Hi,

I’m using R package RDCOMClient (http://www.omegahat.org/RDCOMClient/)
to retrieve data from MS Excel workbook. I’m using the code below to
count the number of sheets in the workbook and then loop the data from
sheets in to a list.

############# R code ###################
library(gdata)
library(RDCOMClient)

xl <- COMCreate("Excel.Application")
sh <- xl$Workbooks()$Open(normalizePath("sample_file.xls"))$Sheets()$Count()

DF.list <- list()
for (i in 1:sh) {
   DF.list[[i]] <- read.xls("sample_file.xls", sheet=i,
stringsAsFactors = FALSE)
   }
######################################

COMCreate opens Excel process and it can be seen from Windows Task
Manager. When I try to open sample_file.xls in Excel, it just flashes
in the screen and shuts down. When I kill (via task manager) the Excel
process COMCreate started, sample_file.xls will open normally.

The question is, how can I close the Excel process COMCreate started.
xl$Close() doesn’t seem to work. The same problem have been presented
in this post to R-help:
http://tolstoy.newcastle.edu.au/R/help/06/04/25990.html

-L

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Re: RDCOMClient: how to close Excel process?

by Henrique Dallazuanna :: Rate this Message:

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Try this:

xl$Quit()

On Wed, Jul 8, 2009 at 10:06 AM, Lauri Nikkinen <lauri.nikkinen@...>wrote:

> Hi,
>
> I’m using R package RDCOMClient (http://www.omegahat.org/RDCOMClient/)
> to retrieve data from MS Excel workbook. I’m using the code below to
> count the number of sheets in the workbook and then loop the data from
> sheets in to a list.
>
> ############# R code ###################
> library(gdata)
> library(RDCOMClient)
>
> xl <- COMCreate("Excel.Application")
> sh <-
> xl$Workbooks()$Open(normalizePath("sample_file.xls"))$Sheets()$Count()
>
> DF.list <- list()
> for (i in 1:sh) {
>   DF.list[[i]] <- read.xls("sample_file.xls", sheet=i,
> stringsAsFactors = FALSE)
>   }
> ######################################
>
> COMCreate opens Excel process and it can be seen from Windows Task
> Manager. When I try to open sample_file.xls in Excel, it just flashes
> in the screen and shuts down. When I kill (via task manager) the Excel
> process COMCreate started, sample_file.xls will open normally.
>
> The question is, how can I close the Excel process COMCreate started.
> xl$Close() doesn’t seem to work. The same problem have been presented
> in this post to R-help:
> http://tolstoy.newcastle.edu.au/R/help/06/04/25990.html
>
> -L
>
> ______________________________________________
> R-help@... 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.
>


--
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O

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and provide commented, minimal, self-contained, reproducible code.

Re: RDCOMClient: how to close Excel process?

by Lauri Nikkinen :: Rate this Message:

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Thanks but that did not work. xl$Quit() does not kill the Excel
process and sample_file.xls will not open.

I'm using Windows XP SP2 and R 2.8.1

-L

2009/7/8 Henrique Dallazuanna <wwwhsd@...>:

> Try this:
>
> xl$Quit()
>
> On Wed, Jul 8, 2009 at 10:06 AM, Lauri Nikkinen <lauri.nikkinen@...>
> wrote:
>>
>> Hi,
>>
>> I’m using R package RDCOMClient (http://www.omegahat.org/RDCOMClient/)
>> to retrieve data from MS Excel workbook. I’m using the code below to
>> count the number of sheets in the workbook and then loop the data from
>> sheets in to a list.
>>
>> ############# R code ###################
>> library(gdata)
>> library(RDCOMClient)
>>
>> xl <- COMCreate("Excel.Application")
>> sh <-
>> xl$Workbooks()$Open(normalizePath("sample_file.xls"))$Sheets()$Count()
>>
>> DF.list <- list()
>> for (i in 1:sh) {
>>   DF.list[[i]] <- read.xls("sample_file.xls", sheet=i,
>> stringsAsFactors = FALSE)
>>   }
>> ######################################
>>
>> COMCreate opens Excel process and it can be seen from Windows Task
>> Manager. When I try to open sample_file.xls in Excel, it just flashes
>> in the screen and shuts down. When I kill (via task manager) the Excel
>> process COMCreate started, sample_file.xls will open normally.
>>
>> The question is, how can I close the Excel process COMCreate started.
>> xl$Close() doesn’t seem to work. The same problem have been presented
>> in this post to R-help:
>> http://tolstoy.newcastle.edu.au/R/help/06/04/25990.html
>>
>> -L
>>
>> ______________________________________________
>> R-help@... 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.
>
>
>
> --
> Henrique Dallazuanna
> Curitiba-Paraná-Brasil
> 25° 25' 40" S 49° 16' 22" O
>

______________________________________________
R-help@... mailing list
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and provide commented, minimal, self-contained, reproducible code.

Re: RDCOMClient: how to close Excel process?

by Henrique Dallazuanna :: Rate this Message:

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Then, you can try this:

xl <- COMCreate("Excel.Application")
wk  <- xl$Workbooks()
sh <- wk$Open(normalizePath("sample_file.xls"))$Sheets()$Count()

wk$Close()
xl$Quit()



On Wed, Jul 8, 2009 at 10:19 AM, Lauri Nikkinen <lauri.nikkinen@...>wrote:

> Thanks but that did not work. xl$Quit() does not kill the Excel
> process and sample_file.xls will not open.
>
> I'm using Windows XP SP2 and R 2.8.1
>
> -L
>
> 2009/7/8 Henrique Dallazuanna <wwwhsd@...>:
> > Try this:
> >
> > xl$Quit()
> >
> > On Wed, Jul 8, 2009 at 10:06 AM, Lauri Nikkinen <lauri.nikkinen@...>
> > wrote:
> >>
> >> Hi,
> >>
> >> I’m using R package RDCOMClient (http://www.omegahat.org/RDCOMClient/)
> >> to retrieve data from MS Excel workbook. I’m using the code below to
> >> count the number of sheets in the workbook and then loop the data from
> >> sheets in to a list.
> >>
> >> ############# R code ###################
> >> library(gdata)
> >> library(RDCOMClient)
> >>
> >> xl <- COMCreate("Excel.Application")
> >> sh <-
> >> xl$Workbooks()$Open(normalizePath("sample_file.xls"))$Sheets()$Count()
> >>
> >> DF.list <- list()
> >> for (i in 1:sh) {
> >>   DF.list[[i]] <- read.xls("sample_file.xls", sheet=i,
> >> stringsAsFactors = FALSE)
> >>   }
> >> ######################################
> >>
> >> COMCreate opens Excel process and it can be seen from Windows Task
> >> Manager. When I try to open sample_file.xls in Excel, it just flashes
> >> in the screen and shuts down. When I kill (via task manager) the Excel
> >> process COMCreate started, sample_file.xls will open normally.
> >>
> >> The question is, how can I close the Excel process COMCreate started.
> >> xl$Close() doesn’t seem to work. The same problem have been presented
> >> in this post to R-help:
> >> http://tolstoy.newcastle.edu.au/R/help/06/04/25990.html
> >>
> >> -L
> >>
> >> ______________________________________________
> >> R-help@... 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.
> >
> >
> >
> > --
> > Henrique Dallazuanna
> > Curitiba-Paraná-Brasil
> > 25° 25' 40" S 49° 16' 22" O
> >
>


--
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O

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______________________________________________
R-help@... 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.

Re: RDCOMClient: how to close Excel process?

by Lauri Nikkinen :: Rate this Message:

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Thanks again. That did not work either. I get

> library(RDCOMClient)
> xl <- COMCreate("Excel.Application")
> wk  <- xl$Workbooks()
> sh <- wk$Open(normalizePath("sample_file.xls"))$Sheets()$Count()
>
> wk$Close()
[1] TRUE
> xl$Quit()
NULL
>

and there is still Excel process open in the Task manager (and
sample_file.xls won't open).

-L

2009/7/8 Henrique Dallazuanna <wwwhsd@...>:

> Then, you can try this:
>
> xl <- COMCreate("Excel.Application")
> wk  <- xl$Workbooks()
> sh <- wk$Open(normalizePath("sample_file.xls"))$Sheets()$Count()
>
> wk$Close()
> xl$Quit()
>
>
>
> On Wed, Jul 8, 2009 at 10:19 AM, Lauri Nikkinen <lauri.nikkinen@...>
> wrote:
>>
>> Thanks but that did not work. xl$Quit() does not kill the Excel
>> process and sample_file.xls will not open.
>>
>> I'm using Windows XP SP2 and R 2.8.1
>>
>> -L
>>
>> 2009/7/8 Henrique Dallazuanna <wwwhsd@...>:
>> > Try this:
>> >
>> > xl$Quit()
>> >
>> > On Wed, Jul 8, 2009 at 10:06 AM, Lauri Nikkinen <lauri.nikkinen@...>
>> > wrote:
>> >>
>> >> Hi,
>> >>
>> >> I’m using R package RDCOMClient (http://www.omegahat.org/RDCOMClient/)
>> >> to retrieve data from MS Excel workbook. I’m using the code below to
>> >> count the number of sheets in the workbook and then loop the data from
>> >> sheets in to a list.
>> >>
>> >> ############# R code ###################
>> >> library(gdata)
>> >> library(RDCOMClient)
>> >>
>> >> xl <- COMCreate("Excel.Application")
>> >> sh <-
>> >> xl$Workbooks()$Open(normalizePath("sample_file.xls"))$Sheets()$Count()
>> >>
>> >> DF.list <- list()
>> >> for (i in 1:sh) {
>> >>   DF.list[[i]] <- read.xls("sample_file.xls", sheet=i,
>> >> stringsAsFactors = FALSE)
>> >>   }
>> >> ######################################
>> >>
>> >> COMCreate opens Excel process and it can be seen from Windows Task
>> >> Manager. When I try to open sample_file.xls in Excel, it just flashes
>> >> in the screen and shuts down. When I kill (via task manager) the Excel
>> >> process COMCreate started, sample_file.xls will open normally.
>> >>
>> >> The question is, how can I close the Excel process COMCreate started.
>> >> xl$Close() doesn’t seem to work. The same problem have been presented
>> >> in this post to R-help:
>> >> http://tolstoy.newcastle.edu.au/R/help/06/04/25990.html
>> >>
>> >> -L
>> >>
>> >> ______________________________________________
>> >> R-help@... 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.
>> >
>> >
>> >
>> > --
>> > Henrique Dallazuanna
>> > Curitiba-Paraná-Brasil
>> > 25° 25' 40" S 49° 16' 22" O
>> >
>
>
>
> --
> Henrique Dallazuanna
> Curitiba-Paraná-Brasil
> 25° 25' 40" S 49° 16' 22" O
>

______________________________________________
R-help@... 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.

Re: RDCOMClient: how to close Excel process?

by J. R. M. Hosking-2 :: Rate this Message:

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Lauri Nikkinen wrote:

> Thanks again. That did not work either. I get
>
>> library(RDCOMClient)
>> xl <- COMCreate("Excel.Application")
>> wk  <- xl$Workbooks()
>> sh <- wk$Open(normalizePath("sample_file.xls"))$Sheets()$Count()
>>
>> wk$Close()
> [1] TRUE
>> xl$Quit()
> NULL
>
> and there is still Excel process open in the Task manager (and
> sample_file.xls won't open).
>
> -L

In my experience, the Excel process will not go away if any
Excel-related object has been created but not destroyed.  I suggest that
you explictly remove all Excel objects with rm() and run gc() at the end
to clean up:

   library(RDCOMClient)
   xl <- COMCreate("Excel.Application")
   wk <- xl$Workbooks()
   sh<-wk$Open(normalizePath("sample_file.xls"))$Sheets()$Count()
   wk$Close()
   xl$Quit()
   rm(sh)
   rm(wk)
   rm(xl)
   gc()



J. R. M. Hosking

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Re: RDCOMClient: how to close Excel process?

by Lauri Nikkinen :: Rate this Message:

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This solution worked:

nBooks <- xl[["Workbooks"]]$Count();
        for (i in seq_len(nBooks))
                xl[["Workbooks"]]$item(i)$Close(SaveChanges=FALSE);

from

http://www.mail-archive.com/r-help@.../msg61498.html

Thanks!

-L

2009/7/9 Lauri Nikkinen <lauri.nikkinen@...>:

> Thanks again. That did not work either. I get
>
>> library(RDCOMClient)
>> xl <- COMCreate("Excel.Application")
>> wk  <- xl$Workbooks()
>> sh <- wk$Open(normalizePath("sample_file.xls"))$Sheets()$Count()
>>
>> wk$Close()
> [1] TRUE
>> xl$Quit()
> NULL
>>
>
> and there is still Excel process open in the Task manager (and
> sample_file.xls won't open).
>
> -L
>
> 2009/7/8 Henrique Dallazuanna <wwwhsd@...>:
>> Then, you can try this:
>>
>> xl <- COMCreate("Excel.Application")
>> wk  <- xl$Workbooks()
>> sh <- wk$Open(normalizePath("sample_file.xls"))$Sheets()$Count()
>>
>> wk$Close()
>> xl$Quit()
>>
>>
>>
>> On Wed, Jul 8, 2009 at 10:19 AM, Lauri Nikkinen <lauri.nikkinen@...>
>> wrote:
>>>
>>> Thanks but that did not work. xl$Quit() does not kill the Excel
>>> process and sample_file.xls will not open.
>>>
>>> I'm using Windows XP SP2 and R 2.8.1
>>>
>>> -L
>>>
>>> 2009/7/8 Henrique Dallazuanna <wwwhsd@...>:
>>> > Try this:
>>> >
>>> > xl$Quit()
>>> >
>>> > On Wed, Jul 8, 2009 at 10:06 AM, Lauri Nikkinen <lauri.nikkinen@...>
>>> > wrote:
>>> >>
>>> >> Hi,
>>> >>
>>> >> I’m using R package RDCOMClient (http://www.omegahat.org/RDCOMClient/)
>>> >> to retrieve data from MS Excel workbook. I’m using the code below to
>>> >> count the number of sheets in the workbook and then loop the data from
>>> >> sheets in to a list.
>>> >>
>>> >> ############# R code ###################
>>> >> library(gdata)
>>> >> library(RDCOMClient)
>>> >>
>>> >> xl <- COMCreate("Excel.Application")
>>> >> sh <-
>>> >> xl$Workbooks()$Open(normalizePath("sample_file.xls"))$Sheets()$Count()
>>> >>
>>> >> DF.list <- list()
>>> >> for (i in 1:sh) {
>>> >>   DF.list[[i]] <- read.xls("sample_file.xls", sheet=i,
>>> >> stringsAsFactors = FALSE)
>>> >>   }
>>> >> ######################################
>>> >>
>>> >> COMCreate opens Excel process and it can be seen from Windows Task
>>> >> Manager. When I try to open sample_file.xls in Excel, it just flashes
>>> >> in the screen and shuts down. When I kill (via task manager) the Excel
>>> >> process COMCreate started, sample_file.xls will open normally.
>>> >>
>>> >> The question is, how can I close the Excel process COMCreate started.
>>> >> xl$Close() doesn’t seem to work. The same problem have been presented
>>> >> in this post to R-help:
>>> >> http://tolstoy.newcastle.edu.au/R/help/06/04/25990.html
>>> >>
>>> >> -L
>>> >>
>>> >> ______________________________________________
>>> >> R-help@... 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.
>>> >
>>> >
>>> >
>>> > --
>>> > Henrique Dallazuanna
>>> > Curitiba-Paraná-Brasil
>>> > 25° 25' 40" S 49° 16' 22" O
>>> >
>>
>>
>>
>> --
>> Henrique Dallazuanna
>> Curitiba-Paraná-Brasil
>> 25° 25' 40" S 49° 16' 22" O
>>
>

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and provide commented, minimal, self-contained, reproducible code.

SSOAP failure

by nermin sarlak :: Rate this Message:

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Hi,

 I’m using R package SSOAP to retrieve data from web services. I’m using the code below to
 
> >> >> ############# R code ###################
library(SSOAP)
 then I call the nwis.R which exists in SSOAP example folder. However system gives me following errors:

 
Error in parse (text=paste(text, collapse=”\n”)):
Unexpected input in “function (x’…,obj=new(‘”
 
I could not understand why I get this error. I am very appreciate anybody help me.
nermin

 

_________________________________________________________________


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