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

Lavri Labi lavri.labi at tu-dortmund.de
Thu Jun 18 14:37:39 CEST 2009


Hi Xavier,

thanks for your suggestion. It´s run!

Lavri


> 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.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.
>




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