[R] Questíon regarding the use of write.csv2, write.table ...

[Bryan Hanson]

Write.table will give you all the control you need to get exactly what you
want.  Bryan


On 6/18/09 7:50 AM, "xavier.chardon at free.fr" <xavier.chardon at free.fr> wrote:

> Hi,

It sounds like the first column that is "added" is actually the row
> names. That's why a previous answer pointed this argumented. Default for
> write.csv is to write the row names along with the data. So, this should
> work:
write.csv2(exampleDataframe,file="exampleDataframe.csv",
> row.names=FALSE)

Xavier


----- Mail Original -----
De: "Lavri Labi"
> <lavri.labi at tu-dortmund.de>
À: "Jorge Ivan Velez"
> <jorgeivanvelez at gmail.com>
Cc: r-help at r-project.org
Envoyé: Jeudi 18 Juin 2009
> 12h35:31 GMT +01:00 Amsterdam / Berlin / Berne / Rome / Stockholm /
> Vienne
Objet: Re: [R] Questíon regarding the use of write.csv2, write.table
> ...

Dear Jorge,

thank you for the quick answer. But I am afraid you didn´t
> understand my
problem. I want to write the following data frame
> "exampleDataframe" in a
csv2-file.

"a";"b";"c";"d"
 1 ; 2 ; 3 ; 4
 5 ; 6 ; 7
> ; 8
 9 ; 0 ; 1 ; 2

After sending the
> command:

write.csv2(exampleDataframe,file="exampleDataframe.csv")

I become
> the following file:

"";"a";"b";"c";"d"
1 ; 1 ; 2 ; 3 ; 4
2 ; 5 ; 6 ; 7 ; 8
3
> ; 9 ; 0 ; 1 ; 2

How can I delete the first column added, which I do not
> need?

The row.names you suggest me is not reallly helpful in this
> case.

Cheers,

Lavri



> Dear Lavri,
> Take a look at the row.names argument
> in ?write.table.
>
> HTH,
>
> Jorge
>
>
> On Thu, Jun 18, 2009 at 4:09 AM,
> Lavri Labi
> <lavri.labi at tu-dortmund.de>wrote:
>
>> Hi all,
>>
>> I use
> "write.csv" and "write.table" to write a data frame in a file like
>>
> following:
>> write.csv2(allRandomTestCase_XDroped,
> "allRandomTestCase.csv")
>> But in the created file "allRandomTestCase.csv" an
> additional column
>> with
>> consecutive numbers is automatically added to the
> column of the data
>> frame
>> "allRandomTestCase_XDroped".
>>
>> That is why
> my question, how can I write data in a file without this
>> added
>>
> column?
>>
>> Cheers,
>>
>> Lavri
>>
>>
> ______________________________________________
>> R-help at 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 at r-project.or
> g 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 at 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.