[R] about the array transpose

R. Michael Weylandt michael.weylandt at gmail.com
Mon Oct 3 19:21:00 CEST 2011


Mr. Disease,

As Uwe points out, the syntax is pretty clear, but it is perhaps worth
mulling over why:

R> identical(A[,,1], t(B[1,,]))
TRUE

to confirm that you understand the function.

Michael Weylandt

PS -- Might I suggest, if you insist on anonymity, a different handle?
I'm answering on my lunch break and I'm finding that you are providing
me with all sorts of icky mental images...

2011/10/3 Uwe Ligges <ligges at statistik.tu-dortmund.de>:
>
>
> On 03.10.2011 03:29, venerealdisease wrote:
>>
>> Hi, all,
>>
>> I am a newbie for [R]
>> Would anyone help me how to transpose a 3x3x3 array for 1:27
>>
>> Eg.
>> A<-array(1:27, c(3,3,3)
>>
>> What is the logic to transpose it to B<-aperm(A, c(3,2,1))
>
> It simply says third dimension first, second second, and first third.
>
> Uwe Ligges
>
>
>>
>> Because I found I could not imagine how it transposes, anyone could solve
>> my
>> problem?
>> And most important I could get the number what I expected, I think if I
>> could not figure it out, I will have a confused concept which will affect
>> my
>> future learning of 3D models in [R].
>>
>> Highly appreciated and thanks.
>>
>> VD
>>
>>
>>
>>
>>
>>
>>
>> --
>> View this message in context:
>> http://r.789695.n4.nabble.com/about-the-array-transpose-tp3866241p3866241.html
>> Sent from the R help mailing list archive at Nabble.com.
>>
>> ______________________________________________
>> R-help at r-project.org mailing list
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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
> 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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