[R] elegant way to remove cases with many different ids

[Ivan Calandra]

I did not know there was a warning about that!
I usually find it easier to use [ in scripts anyway.

--
Ivan Calandra, ATER
University of Reims Champagne-Ardenne
GEGENAA - EA 3795
CREA - 2 esplanade Roland Garros
51100 Reims, France
+33(0)3 26 77 36 89
ivan.calandra at univ-reims.fr
https://www.researchgate.net/profile/Ivan_Calandra

Le 23/01/15 11:59, Göran Broström a écrit :
>
>
> On 2015-01-23 11:09, Ivan Calandra wrote:
>> Hi Alain,
>>
>> I think you're looking for %in% (see ?'%in%' for the help page)
>>
>> id.vector <- c(1,3)  ## here you define the values you want to select:
>> x, y, z...
>> subset(df, id %in% id.vector)
>
>
> But note the Warning in
>
> >?subset
>
> Göran
>
>>
>> HTH,
>> Ivan
>>
>> -- 
>> Ivan Calandra, ATER
>> University of Reims Champagne-Ardenne
>> GEGENAA - EA 3795
>> CREA - 2 esplanade Roland Garros
>> 51100 Reims, France
>> +33(0)3 26 77 36 89
>> ivan.calandra at univ-reims.fr
>> https://www.researchgate.net/profile/Ivan_Calandra
>>
>> Le 23/01/15 10:50, D. Alain a écrit :
>>> Dear R-List,
>>>
>>> I have nested data with cases grouped by IDs and I want to remove 
>>> all cases with specific IDs.
>>>
>>> something like
>>>
>>> df<-data.frame(id=c(1,1,1,2,2,2,3,3,3,4,4,4,5,5,5),var=c(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15)) 
>>>
>>>
>>> subset(df,id== 1 | id == 3)
>>>
>>> Having a very large dataset with many IDs to remove this solution 
>>> leaves me to write quite a long list of "id == x | id == y | id == z 
>>> ...". I wonder if there is a more elegant way to do this? I tried 
>>> with "id = c(x,y,z)" but this did not give the proper result.
>>>
>>> Any suggestions? Thank you!
>>>
>>> Best wishes
>>>
>>> Alain
>>>
>>>
>>>
>>>
>>>
>>>
>>>     [[alternative HTML version deleted]]
>>>
>>> ______________________________________________
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>>> 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 -- To UNSUBSCRIBE and more, see
>> 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 -- To UNSUBSCRIBE and more, see
> 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.