Thanks Patrick,
Sorry to have missed that!

Tal







On Sat, Mar 28, 2009 at 9:01 PM, Patrick Burns <pburns@pburns.seanet.com>wrote:

> I presume you are looking for:
>
> aa[order(aa)]
>
> and
>
> df[order(df[,1]), ]
>
>
> Patrick Burns
> patrick@burns-stat.com
> +44 (0)20 8525 0696
> http://www.burns-stat.com
> (home of "The R Inferno" and "A Guide for the Unwilling S User")
>
> Tal Galili wrote:
>
>> Hello people.
>>
>> I wish to reorder a simple vector of numbers by another vector of the
>> order
>> (and then do the same, but with a data frame rows)
>>
>> I try this (which doesn't work) :
>>
>>
>>> aa <- c(3, 1 ,2 )
>>> aa[aa]
>>>
>>>
>> [1] 2 3 1
>>
>> The same won't work if I try to order a data frame:
>>
>>
>>> data.frame(matrix(c(3,1,2), 3,2))[c(3,1,2),]
>>>
>>>
>>  X1 X2
>> 3  2  2
>> 1  3  3
>> 2  1  1
>>
>>
>> How should I do this?
>>
>>
>> p.s: sorry if the question is too simple, but I couldn't find a good
>> explanation for this on google.
>> p.p.s: I am running R 2.8
>>
>>
>> Thanks,
>> Tal
>>
>>        [[alternative HTML version deleted]]
>>
>> ______________________________________________
>> R-help@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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Tal Galili
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