[R] get sub elements

Boris Steipe boris.steipe at utoronto.ca
Sun May 10 15:03:40 CEST 2015


I think the "record number" i.e. the indices of the elements were asked for. That would be:

which(5 <= allrecords  & allrecords <= 9)


Cheers,
B.








On May 10, 2015, at 7:33 AM, Rui Barradas <ruipbarradas at sapo.pt> wrote:

> Hello,
> 
> You should learn about indexing in R. Read the pdf R-intro.pdf that comes with your installation of R.
> 
> allrecords[5 <= allrecords & allrecords <= 9]
> 
> should do it.
> 
> Hope this helps,
> 
> Rui Barradas
> 
> Em 10-05-2015 11:00, Ragia Ibrahim escreveu:
>> Dear group
>> I have this numeric object
>> allrecords
>> 1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
>>  1  1  2  1  3  1  1  2  5  4  1  6  8  1  2  1  3  3  2 13  1  4  2  4  7  1 14  1  1
>> 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
>>  1  1  2  2  1  1  2  2  2  9  3  1  1  3  6  1  4  1  3  9  2
>> 
>> 
>> how can I extract only records between 9 and 5 values only  and put the record number n a vector
>> 
>> it should be vector
>> thanks in advance
>> Ragia
>> 
>> 
>> 
>>  		 	   		   		 	   		
>> 	[[alternative HTML version deleted]]
>> 
>> ______________________________________________
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>> 
> 
> ______________________________________________
> 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.



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